ID

VAR-202105-0146


CVE

CVE-2020-26558


TITLE

Bluetooth Core Specification  Authentication vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-007333

DESCRIPTION

Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time. Bluetooth Core Specification There is an authentication vulnerability in.Information may be obtained and information may be tampered with. CVE-2020-26558 / CVE-2021-0129 It was discovered that Bluez does not properly check permissions during pairing operation, which could allow an attacker to impersonate the initiating device. For the stable distribution (buster), these problems have been fixed in version 5.50-1.2~deb10u2. We recommend that you upgrade your bluez packages. For the detailed security status of bluez please refer to its security tracker page at: https://security-tracker.debian.org/tracker/bluez Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAmEO1iRfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0QF3xAAkSvKZRi8690yAgH6kahX0wdjgjw6bwEm4AIisUYPcnmTe+eXWo65amXD Gu5RDkjJdwZuiOhjYuEQp/g79f2jRna1gtYhTrErO4G/W2ma8GF/R0ligiDAeUka wrzk5bpY1eeCbyI/EmMSAZdxOYgjoPgsA6Dqj9aRAhfHIJskCBg08KDm3XxAG/ZK 2rZpv/tHw6JU4WcSsyefY1ocPiUe1vcqH7m/cjgpYfW+0YhE01/khdWibNVXpXkl wwULv2HTXBMPY5xJb++3qcCNve1YZwNSpnfqsaoxdWmRvFYoWZHt231dr3GHZmUn GZ5h7Aaf7Ej7WtQ3TwIXNL5j46ibynxIL277Xqf3Ro1w/7qS0upY2NjkFCy4D24K slWJwm2+pWxrXypNnVNTVO7iWmM498MBaA7qQjtQyrFMulv9nY6WlVIxoVmQwUww mbDO/Lmghmwn7Y8cw9oWZ1+NpQg7wcsdDf0nfz59yAsiJoRoPv7ukXimYedL1lLJ ANS0M+ZQgKy1q9qKknD4LIHAZm6vN62/bU2WWLNErlB5mVuRxsEGuSb3Q1DwQzju akUX8tJemcOLif1aXRjut6isjr5w1lSj4WM4vNlFt/ncADwaWlLV/FzFnyViiw1v AlcVMh2v2aCa6kz1vTY+GCTq+qaBjzqvzeK/raepFbDgEzrIQQI= =Xh4j -----END PGP SIGNATURE----- . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: bluez security update Advisory ID: RHSA-2021:4432-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:4432 Issue date: 2021-11-09 CVE Names: CVE-2020-26558 ==================================================================== 1. Summary: An update for bluez is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux CRB (v. 8) - aarch64, ppc64le, s390x, x86_64 3. Description: The bluez packages contain the following utilities for use in Bluetooth applications: hcitool, hciattach, hciconfig, bluetoothd, l2ping, start scripts (Red Hat), and pcmcia configuration files. Security Fix(es): * bluez: Passkey Entry protocol of the Bluetooth Core is vulnerable to an impersonation attack (CVE-2020-26558) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Package List: Red Hat Enterprise Linux AppStream (v. 8): aarch64: bluez-cups-5.56-1.el8.aarch64.rpm bluez-cups-debuginfo-5.56-1.el8.aarch64.rpm bluez-debuginfo-5.56-1.el8.aarch64.rpm bluez-debugsource-5.56-1.el8.aarch64.rpm bluez-hid2hci-debuginfo-5.56-1.el8.aarch64.rpm bluez-libs-debuginfo-5.56-1.el8.aarch64.rpm bluez-obexd-debuginfo-5.56-1.el8.aarch64.rpm ppc64le: bluez-cups-5.56-1.el8.ppc64le.rpm bluez-cups-debuginfo-5.56-1.el8.ppc64le.rpm bluez-debuginfo-5.56-1.el8.ppc64le.rpm bluez-debugsource-5.56-1.el8.ppc64le.rpm bluez-hid2hci-debuginfo-5.56-1.el8.ppc64le.rpm bluez-libs-debuginfo-5.56-1.el8.ppc64le.rpm bluez-obexd-debuginfo-5.56-1.el8.ppc64le.rpm s390x: bluez-cups-5.56-1.el8.s390x.rpm bluez-cups-debuginfo-5.56-1.el8.s390x.rpm bluez-debuginfo-5.56-1.el8.s390x.rpm bluez-debugsource-5.56-1.el8.s390x.rpm bluez-hid2hci-debuginfo-5.56-1.el8.s390x.rpm bluez-libs-debuginfo-5.56-1.el8.s390x.rpm bluez-obexd-debuginfo-5.56-1.el8.s390x.rpm x86_64: bluez-cups-5.56-1.el8.x86_64.rpm bluez-cups-debuginfo-5.56-1.el8.x86_64.rpm bluez-debuginfo-5.56-1.el8.x86_64.rpm bluez-debugsource-5.56-1.el8.x86_64.rpm bluez-hid2hci-debuginfo-5.56-1.el8.x86_64.rpm bluez-libs-debuginfo-5.56-1.el8.x86_64.rpm bluez-obexd-debuginfo-5.56-1.el8.x86_64.rpm Red Hat Enterprise Linux BaseOS (v. 8): Source: bluez-5.56-1.el8.src.rpm aarch64: bluez-5.56-1.el8.aarch64.rpm bluez-cups-debuginfo-5.56-1.el8.aarch64.rpm bluez-debuginfo-5.56-1.el8.aarch64.rpm bluez-debugsource-5.56-1.el8.aarch64.rpm bluez-hid2hci-5.56-1.el8.aarch64.rpm bluez-hid2hci-debuginfo-5.56-1.el8.aarch64.rpm bluez-libs-5.56-1.el8.aarch64.rpm bluez-libs-debuginfo-5.56-1.el8.aarch64.rpm bluez-obexd-5.56-1.el8.aarch64.rpm bluez-obexd-debuginfo-5.56-1.el8.aarch64.rpm ppc64le: bluez-5.56-1.el8.ppc64le.rpm bluez-cups-debuginfo-5.56-1.el8.ppc64le.rpm bluez-debuginfo-5.56-1.el8.ppc64le.rpm bluez-debugsource-5.56-1.el8.ppc64le.rpm bluez-hid2hci-5.56-1.el8.ppc64le.rpm bluez-hid2hci-debuginfo-5.56-1.el8.ppc64le.rpm bluez-libs-5.56-1.el8.ppc64le.rpm bluez-libs-debuginfo-5.56-1.el8.ppc64le.rpm bluez-obexd-5.56-1.el8.ppc64le.rpm bluez-obexd-debuginfo-5.56-1.el8.ppc64le.rpm s390x: bluez-5.56-1.el8.s390x.rpm bluez-cups-debuginfo-5.56-1.el8.s390x.rpm bluez-debuginfo-5.56-1.el8.s390x.rpm bluez-debugsource-5.56-1.el8.s390x.rpm bluez-hid2hci-5.56-1.el8.s390x.rpm bluez-hid2hci-debuginfo-5.56-1.el8.s390x.rpm bluez-libs-5.56-1.el8.s390x.rpm bluez-libs-debuginfo-5.56-1.el8.s390x.rpm bluez-obexd-5.56-1.el8.s390x.rpm bluez-obexd-debuginfo-5.56-1.el8.s390x.rpm x86_64: bluez-5.56-1.el8.x86_64.rpm bluez-cups-debuginfo-5.56-1.el8.i686.rpm bluez-cups-debuginfo-5.56-1.el8.x86_64.rpm bluez-debuginfo-5.56-1.el8.i686.rpm bluez-debuginfo-5.56-1.el8.x86_64.rpm bluez-debugsource-5.56-1.el8.i686.rpm bluez-debugsource-5.56-1.el8.x86_64.rpm bluez-hid2hci-5.56-1.el8.x86_64.rpm bluez-hid2hci-debuginfo-5.56-1.el8.i686.rpm bluez-hid2hci-debuginfo-5.56-1.el8.x86_64.rpm bluez-libs-5.56-1.el8.i686.rpm bluez-libs-5.56-1.el8.x86_64.rpm bluez-libs-debuginfo-5.56-1.el8.i686.rpm bluez-libs-debuginfo-5.56-1.el8.x86_64.rpm bluez-obexd-5.56-1.el8.x86_64.rpm bluez-obexd-debuginfo-5.56-1.el8.i686.rpm bluez-obexd-debuginfo-5.56-1.el8.x86_64.rpm Red Hat Enterprise Linux CRB (v. 8): aarch64: bluez-cups-debuginfo-5.56-1.el8.aarch64.rpm bluez-debuginfo-5.56-1.el8.aarch64.rpm bluez-debugsource-5.56-1.el8.aarch64.rpm bluez-hid2hci-debuginfo-5.56-1.el8.aarch64.rpm bluez-libs-debuginfo-5.56-1.el8.aarch64.rpm bluez-libs-devel-5.56-1.el8.aarch64.rpm bluez-obexd-debuginfo-5.56-1.el8.aarch64.rpm ppc64le: bluez-cups-debuginfo-5.56-1.el8.ppc64le.rpm bluez-debuginfo-5.56-1.el8.ppc64le.rpm bluez-debugsource-5.56-1.el8.ppc64le.rpm bluez-hid2hci-debuginfo-5.56-1.el8.ppc64le.rpm bluez-libs-debuginfo-5.56-1.el8.ppc64le.rpm bluez-libs-devel-5.56-1.el8.ppc64le.rpm bluez-obexd-debuginfo-5.56-1.el8.ppc64le.rpm s390x: bluez-cups-debuginfo-5.56-1.el8.s390x.rpm bluez-debuginfo-5.56-1.el8.s390x.rpm bluez-debugsource-5.56-1.el8.s390x.rpm bluez-hid2hci-debuginfo-5.56-1.el8.s390x.rpm bluez-libs-debuginfo-5.56-1.el8.s390x.rpm bluez-libs-devel-5.56-1.el8.s390x.rpm bluez-obexd-debuginfo-5.56-1.el8.s390x.rpm x86_64: bluez-cups-debuginfo-5.56-1.el8.i686.rpm bluez-cups-debuginfo-5.56-1.el8.x86_64.rpm bluez-debuginfo-5.56-1.el8.i686.rpm bluez-debuginfo-5.56-1.el8.x86_64.rpm bluez-debugsource-5.56-1.el8.i686.rpm bluez-debugsource-5.56-1.el8.x86_64.rpm bluez-hid2hci-debuginfo-5.56-1.el8.i686.rpm bluez-hid2hci-debuginfo-5.56-1.el8.x86_64.rpm bluez-libs-debuginfo-5.56-1.el8.i686.rpm bluez-libs-debuginfo-5.56-1.el8.x86_64.rpm bluez-libs-devel-5.56-1.el8.i686.rpm bluez-libs-devel-5.56-1.el8.x86_64.rpm bluez-obexd-debuginfo-5.56-1.el8.i686.rpm bluez-obexd-debuginfo-5.56-1.el8.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYYrdt9zjgjWX9erEAQj3Kg//RFuvdDqQfdw3Wm00uS+qmxOaUzvG5OVO XrSpoMb5VcrJRKTBY3u4ObfU1+yGJ5iF2wGwxgu6QF4tLUwC/OPSCgvS0lifTcEy OkvBnkR06tBsGTjBmN8wyHQTEGVdFLlFU+sbC+yKjHmF31o6ZgDD7VZV/wuzqSGk ZPR39CzfnnnTzLz2QvrYJZZ/tpgvS5qOTebP/qEmQCuwmRJeTaY+pgj28e8njQjU NMqAcR7/kPX6LIYzdhQgEOCWZ9imxjoYAwY/VMu9T23zuyTkRTQtCC8Q5GJgATRV qD4adxIeyJSvvMzJf6VkvzXu32AWira9oFgFPiYwjEYVJcMmGKZGJx94a1mu2Rs8 TFi3+iuVAdHE1S9NJ54nfxkjnVs6XKDIITNIZkl+isfQEtkkUBfeVcK6U/57wCKN jgvUtrcQpqNH86x3Uu4W//eFlXQrbfzsogDx10d/jSk+PPg60mP6Fzcad8PTgr/H vZygkT1bLbY7lOXejiVnJ8+otIv7tK+XzajDvQwgwC+9IigncMygiSS0SelVht4U rvdqIKs2btFOBk+GhUzEMogaGFDqRUpFKIEFFVtL6d3Uvr4rgDHjMewKdU9v11ED 94Cg3wX0XFYvrnRS1Lxx9m1vuWtevD4EyZLSxcAEMLSXEMoa2c8f7Y6gxb7PGAKb irY79RTeDm4=R6rn -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . ========================================================================== Ubuntu Security Notice USN-5343-1 March 22, 2022 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-kvm: Linux kernel for cloud environments - linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty Details: Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. (CVE-2022-0492) It was discovered that the aufs file system in the Linux kernel did not properly restrict mount namespaces, when mounted with the non-default allow_userns option set. A local attacker could use this to gain administrative privileges. (CVE-2016-2853) It was discovered that the aufs file system in the Linux kernel did not properly maintain POSIX ACL xattr data, when mounted with the non-default allow_userns option. A local attacker could possibly use this to gain elevated privileges. (CVE-2016-2854) It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-19449) It was discovered that the XFS file system implementation in the Linux kernel did not properly validate meta data in some circumstances. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service. (CVE-2020-12655) Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-25670) Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly deallocate memory in certain error situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2020-25671, CVE-2020-25672) Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly handle error conditions in some situations, leading to an infinite loop. A local attacker could use this to cause a denial of service. (CVE-2020-25673) Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled EAPOL frames from unauthenticated senders. A physically proximate attacker could inject malicious packets to cause a denial of service (system crash). (CVE-2020-26139) Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could reassemble mixed encrypted and plaintext fragments. A physically proximate attacker could possibly use this issue to inject packets or exfiltrate selected fragments. (CVE-2020-26147) It was discovered that the BR/EDR pin-code pairing procedure in the Linux kernel was vulnerable to an impersonation attack. A physically proximate attacker could possibly use this to pair to a device without knowledge of the pin-code. (CVE-2020-26555) It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129) It was discovered that the FUSE user space file system implementation in the Linux kernel did not properly handle bad inodes in some situations. A local attacker could possibly use this to cause a denial of service. (CVE-2020-36322) It was discovered that the Infiniband RDMA userspace connection manager implementation in the Linux kernel contained a race condition leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possible execute arbitrary code. (CVE-2020-36385) It was discovered that the DRM subsystem in the Linux kernel contained double-free vulnerabilities. A privileged attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-20292) It was discovered that a race condition existed in the timer implementation in the Linux kernel. A privileged attacker could use this to cause a denial of service. (CVE-2021-20317) Or Cohen and Nadav Markus discovered a use-after-free vulnerability in the nfc implementation in the Linux kernel. A privileged local attacker could use this issue to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23134) It was discovered that the Xen paravirtualization backend in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2021-28688) It was discovered that the RPA PCI Hotplug driver implementation in the Linux kernel did not properly handle device name writes via sysfs, leading to a buffer overflow. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-28972) It was discovered that a race condition existed in the netfilter subsystem of the Linux kernel when replacing tables. A local attacker could use this to cause a denial of service (system crash). (CVE-2021-29650) It was discovered that a race condition in the kernel Bluetooth subsystem could lead to use-after-free of slab objects. An attacker could use this issue to possibly execute arbitrary code. (CVE-2021-32399) It was discovered that the CIPSO implementation in the Linux kernel did not properly perform reference counting in some situations, leading to use- after-free vulnerabilities. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33033) It was discovered that a use-after-free existed in the Bluetooth HCI driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33034) Asaf Modelevsky discovered that the Intel(R) Ethernet ixgbe driver for the Linux kernel did not properly validate large MTU requests from Virtual Function (VF) devices. A local attacker could possibly use this to cause a denial of service. (CVE-2021-33098) Norbert Slusarek discovered that the CAN broadcast manger (bcm) protocol implementation in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-34693) 马哲宇 discovered that the IEEE 1394 (Firewire) nosy packet sniffer driver in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3483) It was discovered that an out-of-bounds (OOB) memory access flaw existed in the f2fs module of the Linux kernel. A local attacker could use this issue to cause a denial of service (system crash). (CVE-2021-3506) It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device initialization failure, leading to a double-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3564) It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device detach events, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3573) Murray McAllister discovered that the joystick device interface in the Linux kernel did not properly validate data passed via an ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code on systems with a joystick device registered. (CVE-2021-3612) It was discovered that the tracing subsystem in the Linux kernel did not properly keep track of per-cpu ring buffer state. A privileged attacker could use this to cause a denial of service. (CVE-2021-3679) It was discovered that the Virtio console implementation in the Linux kernel did not properly validate input lengths in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2021-38160) It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly compute the access permissions for shadow pages in some situations. A local attacker could use this to cause a denial of service. (CVE-2021-38198) It was discovered that the MAX-3421 host USB device driver in the Linux kernel did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2021-38204) It was discovered that the NFC implementation in the Linux kernel did not properly handle failed connect events leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service. (CVE-2021-38208) It was discovered that the configfs interface for USB gadgets in the Linux kernel contained a race condition. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2021-39648) It was discovered that the ext4 file system in the Linux kernel contained a race condition when writing xattrs to an inode. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. (CVE-2021-40490) It was discovered that the 6pack network protocol driver in the Linux kernel did not properly perform validation checks. A privileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-42008) It was discovered that the ISDN CAPI implementation in the Linux kernel contained a race condition in certain situations that could trigger an array out-of-bounds bug. A privileged local attacker could possibly use this to cause a denial of service or execute arbitrary code. (CVE-2021-43389) It was discovered that the Phone Network protocol (PhoNet) implementation in the Linux kernel did not properly perform reference counting in some error conditions. A local attacker could possibly use this to cause a denial of service (memory exhaustion). (CVE-2021-45095) Wenqing Liu discovered that the f2fs file system in the Linux kernel did not properly validate the last xattr entry in an inode. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-45469) Amit Klein discovered that the IPv6 implementation in the Linux kernel could disclose internal state in some situations. An attacker could possibly use this to expose sensitive information. (CVE-2021-45485) It was discovered that the per cpu memory allocator in the Linux kernel could report kernel pointers via dmesg. An attacker could use this to expose sensitive information or in conjunction with another kernel vulnerability. (CVE-2018-5995) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 ESM: linux-image-4.4.0-1103-kvm 4.4.0-1103.112 linux-image-4.4.0-1138-aws 4.4.0-1138.152 linux-image-4.4.0-222-generic 4.4.0-222.255 linux-image-4.4.0-222-lowlatency 4.4.0-222.255 linux-image-aws 4.4.0.1138.143 linux-image-generic 4.4.0.222.229 linux-image-kvm 4.4.0.1103.101 linux-image-lowlatency 4.4.0.222.229 linux-image-virtual 4.4.0.222.229 Ubuntu 14.04 ESM: linux-image-4.4.0-1102-aws 4.4.0-1102.107 linux-image-4.4.0-222-generic 4.4.0-222.255~14.04.1 linux-image-4.4.0-222-lowlatency 4.4.0-222.255~14.04.1 linux-image-aws 4.4.0.1102.100 linux-image-generic-lts-xenial 4.4.0.222.193 linux-image-lowlatency-lts-xenial 4.4.0.222.193 linux-image-virtual-lts-xenial 4.4.0.222.193 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://ubuntu.com/security/notices/USN-5343-1 CVE-2016-2853, CVE-2016-2854, CVE-2018-5995, CVE-2019-19449, CVE-2020-12655, CVE-2020-25670, CVE-2020-25671, CVE-2020-25672, CVE-2020-25673, CVE-2020-26139, CVE-2020-26147, CVE-2020-26555, CVE-2020-26558, CVE-2020-36322, CVE-2020-36385, CVE-2021-0129, CVE-2021-20292, CVE-2021-20317, CVE-2021-23134, CVE-2021-28688, CVE-2021-28972, CVE-2021-29650, CVE-2021-32399, CVE-2021-33033, CVE-2021-33034, CVE-2021-33098, CVE-2021-34693, CVE-2021-3483, CVE-2021-3506, CVE-2021-3564, CVE-2021-3573, CVE-2021-3612, CVE-2021-3679, CVE-2021-38160, CVE-2021-38198, CVE-2021-38204, CVE-2021-38208, CVE-2021-39648, CVE-2021-40490, CVE-2021-42008, CVE-2021-43389, CVE-2021-45095, CVE-2021-45469, CVE-2021-45485, CVE-2022-0492 . Software Description: - bluez: Bluetooth tools and daemons Details: It was discovered that BlueZ incorrectly checked certain permissions when pairing. (CVE-2020-26558) Jay LV discovered that BlueZ incorrectly handled redundant disconnect MGMT events. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-27153) Ziming Zhang discovered that BlueZ incorrectly handled certain array indexes

Trust: 2.34

sources: NVD: CVE-2020-26558 // JVNDB: JVNDB-2021-007333 // VULMON: CVE-2020-26558 // PACKETSTORM: 169112 // PACKETSTORM: 164844 // PACKETSTORM: 166417 // PACKETSTORM: 163184 // PACKETSTORM: 163598 // PACKETSTORM: 163905 // PACKETSTORM: 163877

IOT TAXONOMY

category:['network device']sub_category:bluetooth device

Trust: 0.1

sources: OTHER: None

AFFECTED PRODUCTS

vendor:intelmodel:ac 3165scope:eqversion: -

Trust: 1.0

vendor:intelmodel:ax200scope:eqversion: -

Trust: 1.0

vendor:linuxmodel:kernelscope:ltversion:5.13

Trust: 1.0

vendor:bluetoothmodel:core specificationscope:lteversion:5.2

Trust: 1.0

vendor:intelmodel:ac 9260scope:eqversion: -

Trust: 1.0

vendor:intelmodel:ac 3168scope:eqversion: -

Trust: 1.0

vendor:intelmodel:ac 7265scope:eqversion: -

Trust: 1.0

vendor:intelmodel:ax210scope:eqversion: -

Trust: 1.0

vendor:intelmodel:ac 9462scope:eqversion: -

Trust: 1.0

vendor:intelmodel:ax201scope:eqversion: -

Trust: 1.0

vendor:intelmodel:ac 8260scope:eqversion: -

Trust: 1.0

vendor:debianmodel:linuxscope:eqversion:9.0

Trust: 1.0

vendor:intelmodel:ac 1550scope:eqversion: -

Trust: 1.0

vendor:bluetoothmodel:core specificationscope:gteversion:2.1

Trust: 1.0

vendor:intelmodel:ac 9560scope:eqversion: -

Trust: 1.0

vendor:intelmodel:ac 8265scope:eqversion: -

Trust: 1.0

vendor:intelmodel:ax1675scope:eqversion: -

Trust: 1.0

vendor:fedoraprojectmodel:fedorascope:eqversion:34

Trust: 1.0

vendor:intelmodel:ac 9461scope:eqversion: -

Trust: 1.0

vendor:intelmodel:ax1650scope:eqversion: -

Trust: 1.0

vendor:fedoramodel:fedorascope: - version: -

Trust: 0.8

vendor:bluetooth sigmodel:core specificationscope: - version: -

Trust: 0.8

sources: JVNDB: JVNDB-2021-007333 // NVD: CVE-2020-26558

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2020-26558
value: MEDIUM

Trust: 1.0

NVD: CVE-2020-26558
value: MEDIUM

Trust: 0.8

VULMON: CVE-2020-26558
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2020-26558
severity: MEDIUM
baseScore: 4.3
vectorString: AV:A/AC:M/AU:N/C:P/I:P/A:N
accessVector: ADJACENT_NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: 5.5
impactScore: 4.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

nvd@nist.gov: CVE-2020-26558
baseSeverity: MEDIUM
baseScore: 4.2
vectorString: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
attackVector: ADJACENT
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: LOW
availabilityImpact: NONE
exploitabilityScore: 1.6
impactScore: 2.5
version: 3.1

Trust: 1.0

NVD: CVE-2020-26558
baseSeverity: MEDIUM
baseScore: 4.2
vectorString: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
attackVector: ADJACENT NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: LOW
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULMON: CVE-2020-26558 // JVNDB: JVNDB-2021-007333 // NVD: CVE-2020-26558

PROBLEMTYPE DATA

problemtype:CWE-287

Trust: 1.0

problemtype:Inappropriate authentication (CWE-287) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-007333 // NVD: CVE-2020-26558

THREAT TYPE

local

Trust: 0.3

sources: PACKETSTORM: 166417 // PACKETSTORM: 163184 // PACKETSTORM: 163598

TYPE

arbitrary

Trust: 0.4

sources: PACKETSTORM: 163184 // PACKETSTORM: 163598 // PACKETSTORM: 163905 // PACKETSTORM: 163877

PATCH

title:Reporting Security Vulnerabilities Fedora ProjectFedora Update Notificationurl:https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/

Trust: 0.8

title:Red Hat: CVE-2020-26558url:https://vulmon.com/vendoradvisory?qidtp=red_hat_cve_database&qid=CVE-2020-26558

Trust: 0.1

title:Debian CVElist Bug Report Logs: bluez: CVE-2021-0129 CVE-2020-26558url:https://vulmon.com/vendoradvisory?qidtp=debian_cvelist_bugreportlogs&qid=0634986a83e749d947f670c2c6fc6f8a

Trust: 0.1

title:Debian Security Advisories: DSA-4951-1 bluez -- security updateurl:https://vulmon.com/vendoradvisory?qidtp=debian_security_advisories&qid=022b2816062a8ca433d97ca2e73731f3

Trust: 0.1

title:Arch Linux Issues: url:https://vulmon.com/vendoradvisory?qidtp=arch_linux_issues&qid=CVE-2020-26558 log

Trust: 0.1

title:CVE-2020-26558url:https://github.com/AlAIAL90/CVE-2020-26558

Trust: 0.1

title:BleepingComputerurl:https://www.bleepingcomputer.com/news/security/bluetooth-flaws-allow-attackers-to-impersonate-legitimate-devices/

Trust: 0.1

sources: VULMON: CVE-2020-26558 // JVNDB: JVNDB-2021-007333

EXTERNAL IDS

db:NVDid:CVE-2020-26558

Trust: 3.5

db:CERT/CCid:VU#799380

Trust: 1.9

db:ICS CERTid:ICSA-24-074-07

Trust: 0.8

db:JVNid:JVNVU99594334

Trust: 0.8

db:JVNid:JVNVU99965981

Trust: 0.8

db:JVNid:JVNVU93656033

Trust: 0.8

db:JVNDBid:JVNDB-2021-007333

Trust: 0.8

db:OTHERid:NONE

Trust: 0.1

db:VULMONid:CVE-2020-26558

Trust: 0.1

db:PACKETSTORMid:169112

Trust: 0.1

db:PACKETSTORMid:164844

Trust: 0.1

db:PACKETSTORMid:166417

Trust: 0.1

db:PACKETSTORMid:163184

Trust: 0.1

db:PACKETSTORMid:163598

Trust: 0.1

db:PACKETSTORMid:163905

Trust: 0.1

db:PACKETSTORMid:163877

Trust: 0.1

sources: OTHER: None // VULMON: CVE-2020-26558 // PACKETSTORM: 169112 // PACKETSTORM: 164844 // PACKETSTORM: 166417 // PACKETSTORM: 163184 // PACKETSTORM: 163598 // PACKETSTORM: 163905 // PACKETSTORM: 163877 // JVNDB: JVNDB-2021-007333 // NVD: CVE-2020-26558

REFERENCES

url:https://kb.cert.org/vuls/id/799380

Trust: 1.9

url:https://nvd.nist.gov/vuln/detail/cve-2020-26558

Trust: 1.5

url:https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/

Trust: 1.1

url:https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00520.html

Trust: 1.1

url:https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.html

Trust: 1.1

url:https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html

Trust: 1.1

url:https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html

Trust: 1.1

url:https://lists.debian.org/debian-lts-announce/2021/06/msg00022.html

Trust: 1.1

url:https://www.debian.org/security/2021/dsa-4951

Trust: 1.0

url:https://www.kb.cert.org/vuls/id/799380

Trust: 1.0

url:https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/nss6ctge4ugtjlcozoasdr3t3sll6qjz/

Trust: 1.0

url:https://security.gentoo.org/glsa/202209-16

Trust: 1.0

url:https://jvn.jp/vu/jvnvu99965981/

Trust: 0.8

url:https://jvn.jp/vu/jvnvu99594334/

Trust: 0.8

url:https://jvn.jp/vu/jvnvu93656033/index.html

Trust: 0.8

url:https://www.cisa.gov/news-events/ics-advisories/icsa-24-074-07

Trust: 0.8

url:https://nvd.nist.gov/vuln/detail/cve-2021-3564

Trust: 0.3

url:https://access.redhat.com/security/cve/cve-2020-26558

Trust: 0.2

url:https://nvd.nist.gov/vuln/detail/cve-2020-27153

Trust: 0.2

url:https://nvd.nist.gov/vuln/detail/cve-2021-28691

Trust: 0.2

url:https://nvd.nist.gov/vuln/detail/cve-2021-3573

Trust: 0.2

url:https://ieeexplore.ieee.org/abstract/document/10769424

Trust: 0.1

url:https://cwe.mitre.org/data/definitions/287.html

Trust: 0.1

url:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/nss6ctge4ugtjlcozoasdr3t3sll6qjz/

Trust: 0.1

url:https://github.com/alaial90/cve-2020-26558

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-0129

Trust: 0.1

url:https://security-tracker.debian.org/tracker/bluez

Trust: 0.1

url:https://www.debian.org/security/faq

Trust: 0.1

url:https://www.debian.org/security/

Trust: 0.1

url:https://listman.redhat.com/mailman/listinfo/rhsa-announce

Trust: 0.1

url:https://access.redhat.com/security/updates/classification/#moderate

Trust: 0.1

url:https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/

Trust: 0.1

url:https://access.redhat.com/articles/11258

Trust: 0.1

url:https://access.redhat.com/security/team/key/

Trust: 0.1

url:https://access.redhat.com/errata/rhsa-2021:4432

Trust: 0.1

url:https://bugzilla.redhat.com/):

Trust: 0.1

url:https://access.redhat.com/security/team/contact/

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-34693

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2016-2853

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-26555

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-12655

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-20292

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-28972

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-36322

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2018-5995

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-33098

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-26147

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-25670

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-32399

Trust: 0.1

url:https://ubuntu.com/security/notices/usn-5343-1

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-3506

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-25673

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-33033

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-28688

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-23134

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-33034

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-20317

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-29650

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-3483

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-36385

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2019-19449

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-26139

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2016-2854

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/bluez/5.56-0ubuntu4.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/bluez/5.53-0ubuntu3.2

Trust: 0.1

url:https://ubuntu.com/security/notices/usn-4989-1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/bluez/5.55-0ubuntu1.2

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/bluez/5.48-0ubuntu3.5

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-3588

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-gkeop/5.4.0-1021.22

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-gcp-5.4/5.4.0-1049.53~18.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1049.53

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-oracle-5.4/5.4.0-1052.56~18.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-raspi/5.4.0-1041.45

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1044.46

Trust: 0.1

url:https://ubuntu.com/security/notices/usn-5017-1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-gke-5.4/5.4.0-1049.52~18.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-80.90~18.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-aws-5.4/5.4.0-1054.57~18.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1055.57

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1052.56

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-gke/5.4.0-1049.52

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-33909

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-azure-5.4/5.4.0-1055.57~18.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1054.57

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux/5.4.0-80.90

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-gkeop-5.4/5.4.0-1021.22~18.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-raspi-5.4/5.4.0-1041.45~18.04.1

Trust: 0.1

url:https://ubuntu.com/security/notices/usn-5050-1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-aws-5.8/5.8.0-1042.44~20.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-oracle-5.8/5.8.0-1038.39~20.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-gcp-5.8/5.8.0-1039.41

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-38208

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-azure-5.8/5.8.0-1040.43~20.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-azure/5.11.0-1013.14

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-gcp/5.11.0-1017.19

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux/5.11.0-31.33

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-hwe-5.11/5.11.0-27.29~20.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-oracle/5.11.0-1016.17

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-raspi/5.11.0-1016.17

Trust: 0.1

url:https://ubuntu.com/security/notices/usn-5046-1

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-3587

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/linux-aws/5.11.0-1016.17

Trust: 0.1

sources: OTHER: None // VULMON: CVE-2020-26558 // PACKETSTORM: 169112 // PACKETSTORM: 164844 // PACKETSTORM: 166417 // PACKETSTORM: 163184 // PACKETSTORM: 163598 // PACKETSTORM: 163905 // PACKETSTORM: 163877 // JVNDB: JVNDB-2021-007333 // NVD: CVE-2020-26558

CREDITS

Ubuntu

Trust: 0.5

sources: PACKETSTORM: 166417 // PACKETSTORM: 163184 // PACKETSTORM: 163598 // PACKETSTORM: 163905 // PACKETSTORM: 163877

SOURCES

db:OTHERid: -
db:VULMONid:CVE-2020-26558
db:PACKETSTORMid:169112
db:PACKETSTORMid:164844
db:PACKETSTORMid:166417
db:PACKETSTORMid:163184
db:PACKETSTORMid:163598
db:PACKETSTORMid:163905
db:PACKETSTORMid:163877
db:JVNDBid:JVNDB-2021-007333
db:NVDid:CVE-2020-26558

LAST UPDATE DATE

2025-12-19T22:14:23.767000+00:00


SOURCES UPDATE DATE

db:VULMONid:CVE-2020-26558date:2021-08-07T00:00:00
db:JVNDBid:JVNDB-2021-007333date:2024-03-22T07:16:00
db:NVDid:CVE-2020-26558date:2025-11-04T20:15:58.053

SOURCES RELEASE DATE

db:VULMONid:CVE-2020-26558date:2021-05-24T00:00:00
db:PACKETSTORMid:169112date:2021-08-28T19:12:00
db:PACKETSTORMid:164844date:2021-11-10T17:05:47
db:PACKETSTORMid:166417date:2022-03-23T16:02:30
db:PACKETSTORMid:163184date:2021-06-17T17:45:55
db:PACKETSTORMid:163598date:2021-07-21T16:04:36
db:PACKETSTORMid:163905date:2021-08-24T15:17:06
db:PACKETSTORMid:163877date:2021-08-18T15:28:00
db:JVNDBid:JVNDB-2021-007333date:2022-02-08T00:00:00
db:NVDid:CVE-2020-26558date:2021-05-24T18:15:07.930