ID

VAR-202201-0496

CVE

CVE-2021-4197

TITLE

Linux Kernel  Authentication vulnerability in

DESCRIPTION

An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system. Linux Kernel There is an authentication vulnerability in.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. Attackers can use this vulnerability to bypass the restrictions of the Linux kernel through Cgroup Fd Writing to elevate their privileges. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-5127-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso May 02, 2022 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : linux CVE ID : CVE-2021-4197 CVE-2022-0168 CVE-2022-1016 CVE-2022-1048 CVE-2022-1158 CVE-2022-1195 CVE-2022-1198 CVE-2022-1199 CVE-2022-1204 CVE-2022-1205 CVE-2022-1353 CVE-2022-1516 CVE-2022-26490 CVE-2022-27666 CVE-2022-28356 CVE-2022-28388 CVE-2022-28389 CVE-2022-28390 CVE-2022-29582 Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2021-4197 Eric Biederman reported that incorrect permission checks in the cgroup process migration implementation can allow a local attacker to escalate privileges. The security impact is negligible as CAP_SYS_ADMIN inherently gives the ability to deny service. CVE-2022-1016 David Bouman discovered a flaw in the netfilter subsystem where the nft_do_chain function did not initialize register data that nf_tables expressions can read from and write to. A local attacker can take advantage of this to read sensitive information. CVE-2022-1048 Hu Jiahui discovered a race condition in the sound subsystem that can result in a use-after-free. CVE-2022-1158 Qiuhao Li, Gaoning Pan, and Yongkang Jia discovered a bug in the KVM implementation for x86 processors. A local user with access to /dev/kvm could cause the MMU emulator to update page table entry flags at the wrong address. They could exploit this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation. CVE-2022-1195 Lin Ma discovered race conditions in the 6pack and mkiss hamradio drivers, which could lead to a use-after-free. CVE-2022-1198 Duoming Zhou discovered a race condition in the 6pack hamradio driver, which could lead to a use-after-free. CVE-2022-1199, CVE-2022-1204, CVE-2022-1205 Duoming Zhou discovered race conditions in the AX.25 hamradio protocol, which could lead to a use-after-free or null pointer dereference. CVE-2022-1353 The TCS Robot tool found an information leak in the PF_KEY subsystem. A local user can receive a netlink message when an IPsec daemon reegisters with the kernel, and this could include sensitive information. CVE-2022-1516 A NULL pointer dereference flaw in the implementation of the X.25 set of standardized network protocols, which can result in denial of service. This driver is not enabled in Debian's official kernel configurations. CVE-2022-26490 Buffer overflows in the STMicroelectronics ST21NFCA core driver can result in denial of service or privilege escalation. This driver is not enabled in Debian's official kernel configurations. CVE-2022-27666 "valis" reported a possible buffer overflow in the IPsec ESP transformation code. CVE-2022-28356 Beraphin discovered that the ANSI/IEEE 802.2 LLC type 2 driver did not properly perform reference counting on some error paths. CVE-2022-28388 A double free vulnerability was discovered in the 8 devices USB2CAN interface driver. CVE-2022-28389 A double free vulnerability was discovered in the Microchip CAN BUS Analyzer interface driver. CVE-2022-28390 A double free vulnerability was discovered in the EMS CPC-USB/ARM7 CAN/USB interface driver. CVE-2022-29582 Jayden Rivers and David Bouman discovered a user-after-free vulnerability in the io_uring subystem due to a race condition in io_uring timeouts. For the stable distribution (bullseye), these problems have been fixed in version 5.10.113-1. We recommend that you upgrade your linux packages. For the detailed security status of linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux 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----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAmJwRg9fFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0S8bw//bsMGzd7yC5QHR9/G3Vxn10HSYSy9vkPdOrg9nt58xCygMTvj9G4Ur7P5 SqPulxdczzDQgAEl/UVzmCifFMAbfi77w+0feha6zbrjz4yD8vtmk1caVmvbqOxE MsS7GKyFdRxvqWoCG1boIZZ5aKFCgXug4cY1nARJo4tadF3W3lZw9LP9+kdDJ0Z8 4zfzd1fa0tn6Bk9lqVvaks3zVxLA2Iev0yaLGpWPbsrqiSEnB/e1tWAQX7CVRUNT kY48YpAsGraOyjTMkmLyeXNYHwdNYfKR27DK/4CpXeVzqADlMqKtFOp0lvQhF54t KcBvJjvQsJ5ua7qjoJS97SLlMp7aZ3DvBnz28hn3vDp5iqFDTdLSmuPqJGy5JAOD JdijjSFCB2tTjDLBha+1mGAB2kJG8Kj0rcEiQTyFARejOoCIQg9R3EWfp5HI8DCn e4fGZdRATm6Qe9ofBlVmKmVpV36NaiZuy3UA8lhKTlJsjIhwnFB/WknG93/G64HK wMSkbbXDPoYgH06emh0RIXzddfHHO+mZBgUysHBX5pE0KdDazPleFGn5yOdlX8k5 5OT35Cga+hRVT9KNQfz4Me0AEt0kEwyMIUM6R49KvB8eQ9Az1OjO0yWONz4F5mDW 0HoSJCW+9gZzljIebL+odSyT/dvUZpP/xVzE8DRukDyn99GY6y4= =vCuc -----END PGP SIGNATURE----- . Bugs fixed (https://bugzilla.redhat.com/): 2056342 - [4.7] SRIOV exclusive pooling 2103217 - [4.7] Pod stuck in Terminating, runc init process frozen 2107342 - CVE-2022-30631 golang: compress/gzip: stack exhaustion in Reader.Read 5. Summary: Red Hat OpenShift Container Platform release 4.9.45 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.9. Red Hat Product Security has rated this update as having a security impact of Important. 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. Description: Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.9.45. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2022:5878 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.openshift.com/container-platform/4.9/release_notes/ocp-4-9-release-notes.html Security Fix(es): * openshift: oauth-serving-cert configmap contains cluster certificate private key (CVE-2022-2403) 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. You may download the oc tool and use it to inspect release image metadata as follows: (For x86_64 architecture) $ oc adm release info quay.io/openshift-release-dev/ocp-release:4.9.45-x86_64 The image digest is sha256:8ab373599e8a010dffb9c7ed45e01c00cb06a7857fe21de102d978be4738b2ec (For s390x architecture) $ oc adm release info quay.io/openshift-release-dev/ocp-release:4.9.45-s390x The image digest is sha256:1dde8a7134081c82012a812e014daca4cba1095630e6d0c74b51da141d472984 (For ppc64le architecture) $ oc adm release info quay.io/openshift-release-dev/ocp-release:4.9.45-ppc64le The image digest is sha256:ec1fac628bec05eb6425c2ae9dcd3fca120cd1a8678155350bb4c65813cfc30e All OpenShift Container Platform 4.9 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift Console or the CLI oc command. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.9/updating/updating-cluster-cli.html 3. Solution: For OpenShift Container Platform 4.9 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.9/release_notes/ocp-4-9-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.9/updating/updating-cluster-cli.html 4. Bugs fixed (https://bugzilla.redhat.com/): 2009024 - Unable to complete cluster destruction, some ports are left over 2055494 - console operator should report Upgradeable False when SAN-less certs are used 2083554 - post 1.23 rebase: regression in service-load balancer reliability 2087021 - configure-ovs.sh fails, blocking new RHEL node from being scaled up on cluster without manual reboot 2088539 - Openshift route URLs starting with double slashes stopped working after update to 4.8.33 - curl version problems 2091806 - Cluster upgrade stuck due to "resource deletions in progress" 2095320 - [4.9] Bootimage bump tracker 2097157 - [4.9z] During ovnkube-node restart all host conntrack entries are flushed, leading to traffic disruption 2100786 - [OCP 4.9] Ironic cannot match "wwn" rootDeviceHint for a multipath device 2101664 - disabling ipv6 router advertisements using "all" does not disable it on secondary interfaces 2101959 - CVE-2022-2403 openshift: oauth-serving-cert configmap contains cluster certificate private key 2103982 - [4.9] AWS EBS CSI driver stuck removing EBS volumes - GetDeviceMountRefs check failed 2105277 - NetworkPolicies: ovnkube-master pods crashing due to panic: "invalid memory address or nil pointer dereference" 2105453 - Node reboot causes duplicate persistent volumes 2105654 - egressIP panics with nil pointer dereference 2105663 - APIRequestCount does not identify some APIs removed in 4.9 2106655 - Kubelet slowly leaking memory and pods eventually unable to start 2108538 - [4.9.z backport] br-ex not created due to default bond interface having a different mac address than expected 2108619 - ClusterVersion history pruner does not always retain initial completed update entry 5. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYvKietzjgjWX9erEAQjQ7g/+Ok8sWBeaehUxS8YKMtNEdLzO8Eg5TKfA 3MoORr+P+WZIQFy7pN/GeKojlsy1ApnNEnc7j0qC2dibUBfguOWEoAMdds07DwF3 Jw3iANT5sJZv3s4yT9FvYu9Wnwl/iYJ9w8iH19oePFFKg0QtxAWUvSlIvp2eSZ1L yw86wqAzASDqc86Y0fkIvmxopq80lyI//rNqPXsATKq1oGFRstQmfUz+2UxonlMC tVUfRJjlPDZDU57EpBcxWH/TVPV/JdvcQPQEOJ+u+ZVg2H4qEwptqpgjZ4upYbMJ AAIymXUwmX9QHOcXSOiZ+1DZMJawj5ezkqGwQIl919w3bX/m6peQPbBBoYbXLSrS gtRwgshIIZTs6AzOOVm6+XOSKGRR/C9i1YjNUBF6oY4s+wVtYJvtRwdNrKtH7pCT b0FMcLGG0yo/pGuMfB6zmgEn/tEL0IGqoSeN5avb+NObEDYWMGru4sBjdaA66wu4 1JfPAP/yQ7rW0NXleJXjv9Xhdae7b8en9YxlsWLcp/QE8bppT6tjyIW/aVXEZZva /B1ACyosleJYYYYoqqbU97mCaG/LfH/fz7euD9GgJXOCjGNoHAkKe/DOXg7YTSZP aDbtU3ZeESqyRpAJ8nkM4lZLFTxYNmDp+8tWMx6UXQnNRBOMW4bEQRtzTQB+vrWH fzoc8e3L82I=ARFk -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . ========================================================================== Ubuntu Security Notice USN-5541-1 July 28, 2022 linux-azure vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 ESM Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-azure: Linux kernel for Microsoft Azure Cloud systems Details: Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not perform permission checks correctly in some situations. (CVE-2021-4197) Jann Horn discovered that the FUSE file system in the Linux kernel contained a use-after-free vulnerability. (CVE-2022-1011) Duoming Zhou discovered that the 6pack protocol implementation in the Linux kernel did not handle detach events properly in some situations, leading to a use-after-free vulnerability. (CVE-2022-1198) Duoming Zhou discovered that the AX.25 amateur radio protocol implementation in the Linux kernel did not handle detach events properly in some situations. (CVE-2022-1205) It was discovered that the PF_KEYv2 implementation in the Linux kernel did not properly initialize kernel memory in some situations. (CVE-2022-1353) It was discovered that the implementation of X.25 network protocols in the Linux kernel did not terminate link layer sessions properly. (CVE-2022-1516) Zheyu Ma discovered that the Silicon Motion SM712 framebuffer driver in the Linux kernel did not properly handle very small reads. (CVE-2022-2380) It was discovered that the 8 Devices USB2CAN interface implementation in the Linux kernel did not properly handle certain error conditions, leading to a double-free. (CVE-2022-28389) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 ESM: linux-image-4.15.0-1146-azure 4.15.0-1146.161~16.04.1 linux-image-azure 4.15.0.1146.133 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-5541-1 CVE-2021-4197, CVE-2022-1011, CVE-2022-1198, CVE-2022-1199, CVE-2022-1204, CVE-2022-1205, CVE-2022-1353, CVE-2022-1516, CVE-2022-2380, CVE-2022-28388, CVE-2022-28389

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

authorization issue

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Red Hat

SOURCES

LAST UPDATE DATE

2025-08-11T21:33:08.529000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE