ID

VAR-201905-0710

CVE

CVE-2018-12127

TITLE

Multiple Intel Product Information Disclosure Vulnerability

DESCRIPTION

Microarchitectural Load Port Data Sampling (MLPDS): Load ports on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf. Multiple Intel Products are prone to multiple local information-disclosure vulnerabilities. Local attackers can exploit these issues to obtain sensitive information that may aid in further attacks. Intel Xeon Scalable Processors are all products of Intel Corporation of the United States. Intel Xeon Scalable Processors are a scalable server central processing unit (CPU). Intel Xeon Processor E7 v4 Family is a Xeon E7 series server central processing unit (CPU). Intel Xeon Processor E5 v4 Family is a Xeon E5 series server central processing unit (CPU). This vulnerability stems from configuration errors in network systems or products during operation. The following products and versions are affected: Intel Xeon Scalable Processors; Xeon Processor E7 v4 Family; Xeon Processor E5 v4 Family; Xeon Processor E3 v6 Family; Xeon Processor E3 v4 Family; Xeon Processor E; Xeon E Processor; Xeon D Processor; Puma; Pentium Processor Silver Series; Pentium Processor N Series; Pentium Processor J Series; Pentium Gold Processor Series; Mobile Communications Platforms; Microcode; Core X series Processors; Celeron Processor N Series; Celeron Processor J Series; Celeron Processor G Series; Atom Processor X Series ;Atom Processor E3900 Series;Atom Processor E3800 Series;Atom Processor. The vulnerability is due to improper memory operations that could expose a side channel on the affected system. A successful exploit could be used to conduct further attacks. Proof-of-concept (PoC) code that demonstrates an exploit of this vulnerability is publicly available. Intel has confirmed the vulnerability and released software updates. Description: The RHV-M Virtual Appliance automates the process of installing and configuring the Red Hat Virtualization Manager. The appliance is available to download as an OVA file from the Customer Portal. 7.2) - noarch, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Bug Fix(es): * rwsem in inconsistent state leading system to hung (BZ#1690318) 4. ========================================================================== Ubuntu Security Notice USN-3981-2 May 15, 2019 linux-hwe, linux-azure, linux-gcp, linux-oracle vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 LTS - Ubuntu 14.04 ESM Summary: Several security issues were fixed in the Linux kernel. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS and for the Linux Azure kernel for Ubuntu 14.04 LTS. Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa Milburn, Sebastian \xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss discovered that memory previously stored in microarchitectural fill buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2018-12130) Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan van Schaik, Alyssa Milburn, Sebastian \xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory previously stored in microarchitectural load ports of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2018-12127) Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory previously stored in microarchitectural store buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2018-12126) Vasily Averin and Evgenii Shatokhin discovered that a use-after-free vulnerability existed in the NFS41+ subsystem when multiple network namespaces are in use. A local attacker in a container could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16884) Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian \xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in microarchitectural buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2019-11091) Matteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups subsystem of the Linux kernel did not properly account for SCTP socket buffers. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-3874) Alex Williamson discovered that the vfio subsystem of the Linux kernel did not properly limit DMA mappings. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-3882) Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel contained a heap buffer overflow. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-9500) Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel did not properly prevent remote firmware events from being processed for USB Wifi devices. A physically proximate attacker could use this to send firmware events to the device. (CVE-2019-9503) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: linux-image-4.15.0-1013-oracle 4.15.0-1013.15~16.04.1 linux-image-4.15.0-1032-gcp 4.15.0-1032.34~16.04.1 linux-image-4.15.0-1045-azure 4.15.0-1045.49 linux-image-4.15.0-50-generic 4.15.0-50.54~16.04.1 linux-image-4.15.0-50-generic-lpae 4.15.0-50.54~16.04.1 linux-image-4.15.0-50-lowlatency 4.15.0-50.54~16.04.1 linux-image-azure 4.15.0.1045.49 linux-image-gcp 4.15.0.1032.46 linux-image-generic-hwe-16.04 4.15.0.50.71 linux-image-generic-lpae-hwe-16.04 4.15.0.50.71 linux-image-gke 4.15.0.1032.46 linux-image-lowlatency-hwe-16.04 4.15.0.50.71 linux-image-oem 4.15.0.50.71 linux-image-oracle 4.15.0.1013.7 linux-image-virtual-hwe-16.04 4.15.0.50.71 Ubuntu 14.04 ESM: linux-image-4.15.0-1045-azure 4.15.0-1045.49~14.04.1 linux-image-azure 4.15.0.1045.32 After a standard system update you need to reboot your computer to make all the necessary changes. Please note that fully mitigating the Microarchitectural Data Sampling (MDS) issues (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, and CVE-2019-11091) requires corresponding processor microcode/firmware updates or, in virtual environments, hypervisor updates. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202003-56 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: Xen: Multiple vulnerabilities Date: March 25, 2020 Bugs: #686024, #699048, #699996, #702644 ID: 202003-56 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been found in Xen, the worst of which could allow for privilege escalation. Background ========== Xen is a bare-metal hypervisor. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-emulation/xen < 4.12.0-r1 >= 4.12.0-r1 2 app-emulation/xen-tools < 4.12.0-r1 >= 4.12.0-r1 ------------------------------------------------------------------- 2 affected packages Description =========== Multiple vulnerabilities have been discovered in Xen. Please review the referenced CVE identifiers for details. Workaround ========== There is no known workaround at this time. Resolution ========== All Xen users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-emulation/xen-4.12.0-r1" References ========== [ 1 ] CVE-2018-12126 https://nvd.nist.gov/vuln/detail/CVE-2018-12126 [ 2 ] CVE-2018-12127 https://nvd.nist.gov/vuln/detail/CVE-2018-12127 [ 3 ] CVE-2018-12130 https://nvd.nist.gov/vuln/detail/CVE-2018-12130 [ 4 ] CVE-2018-12207 https://nvd.nist.gov/vuln/detail/CVE-2018-12207 [ 5 ] CVE-2018-12207 https://nvd.nist.gov/vuln/detail/CVE-2018-12207 [ 6 ] CVE-2019-11091 https://nvd.nist.gov/vuln/detail/CVE-2019-11091 [ 7 ] CVE-2019-11135 https://nvd.nist.gov/vuln/detail/CVE-2019-11135 [ 8 ] CVE-2019-18420 https://nvd.nist.gov/vuln/detail/CVE-2019-18420 [ 9 ] CVE-2019-18421 https://nvd.nist.gov/vuln/detail/CVE-2019-18421 [ 10 ] CVE-2019-18423 https://nvd.nist.gov/vuln/detail/CVE-2019-18423 [ 11 ] CVE-2019-18424 https://nvd.nist.gov/vuln/detail/CVE-2019-18424 [ 12 ] CVE-2019-18425 https://nvd.nist.gov/vuln/detail/CVE-2019-18425 [ 13 ] CVE-2019-19577 https://nvd.nist.gov/vuln/detail/CVE-2019-19577 [ 14 ] CVE-2019-19578 https://nvd.nist.gov/vuln/detail/CVE-2019-19578 [ 15 ] CVE-2019-19580 https://nvd.nist.gov/vuln/detail/CVE-2019-19580 [ 16 ] CVE-2019-19581 https://nvd.nist.gov/vuln/detail/CVE-2019-19581 [ 17 ] CVE-2019-19582 https://nvd.nist.gov/vuln/detail/CVE-2019-19582 [ 18 ] CVE-2019-19583 https://nvd.nist.gov/vuln/detail/CVE-2019-19583 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202003-56 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2020 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5 . It provides mitigations for the MSBDS, MFBDS, MLPDS and MDSUM hardware vulnerabilities. To fully resolve these vulnerabilities it is also necessary to update the Linux kernel packages as released in DSA 4444. For the stable distribution (stretch), these problems have been fixed in version 3.20190514.1~deb9u1. We recommend that you upgrade your intel-microcode packages. For the detailed security status of intel-microcode please refer to its security tracker page at: https://security-tracker.debian.org/tracker/intel-microcode 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----- iQIzBAEBCgAdFiEEtuYvPRKsOElcDakFEMKTtsN8TjYFAlzb2WsACgkQEMKTtsN8 TjZ+PBAAqVaw+/6ZsLEwj4aPlI0XrDP1MEWLHSFyOpOluNKaHSfCR1MopjdmSykT 91es+HCLISwbpuhPy8a+rPEZnSwnQczuXJITMVnW0Z9noUvTf/BnN/dAdwTa8Ka8 DkhBnvmc5gOkdcG7il+PaI1byZ5/6S+znqhDiN4VSZg3h1LhJMk9h9kUjQS+W6uC qA4JGdJsqeQShngE8njGetwCaf29+e2OQ3RfuDp+6XgsQln2ZOi7r69Bj5VmH5jB yYzMMp8n0jMKelzqP9HtniL/P/75foDhQrP95k8gFaeRaLTEIb0NNLP1JpiaVKtn +c+1yMN6R7JG86AOlNOq/xUHv3pkuP9i2PBEga/956nQZf9g9/5tc6/K0dgHl4Yx zn1SKQrKdXVqtvYx6boh3cPqoJ99W32GijQHr2N8ezjdmW7SHMGtpnSVO88nDbH4 JVdxVhtY4JCsDJxYIwb6T4p3TSGIzN0T7y5/YqItqObmblLpg8jASWNkrepH3jqY a9swwMelQTsop5LFTwgYbTznXSEE+AorFTc+hOvScR4ZSr8kPVK/nf/m+h5Zj68B Lx/nnOQZFYySrNBKMfMLCXmrmMWP3ZavMiiEJL4GbWfNFAEJH4P+2UwsjwyEVW3h NrRAdm0MqsY86tHBWmDGhNMYjShKm/vG5mMpWg5r3AG3IhG1x/U= =PWZK -----END PGP SIGNATURE----- . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: qemu-kvm security update Advisory ID: RHSA-2019:1188-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1188 Issue date: 2019-05-14 CVE Names: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2019-11091 ===================================================================== 1. Summary: An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.2 Advanced Update Support, Red Hat Enterprise Linux 7.2 Telco Extended Update Support, and Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions. 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. Relevant releases/architectures: Red Hat Enterprise Linux Server AUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server E4S (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional E4S (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server TUS (v. 7.2) - x86_64 3. Description: Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Security Fix(es): * A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130) * Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126) * Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2019-11091) 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. 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 After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS) 1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) 1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS) 1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM) 6. Package List: Red Hat Enterprise Linux Server AUS (v. 7.2): Source: qemu-kvm-1.5.3-105.el7_2.19.src.rpm x86_64: libcacard-1.5.3-105.el7_2.19.i686.rpm libcacard-1.5.3-105.el7_2.19.x86_64.rpm qemu-img-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-common-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-debuginfo-1.5.3-105.el7_2.19.i686.rpm qemu-kvm-debuginfo-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-tools-1.5.3-105.el7_2.19.x86_64.rpm Red Hat Enterprise Linux Server E4S (v. 7.2): Source: qemu-kvm-1.5.3-105.el7_2.19.src.rpm x86_64: libcacard-1.5.3-105.el7_2.19.i686.rpm libcacard-1.5.3-105.el7_2.19.x86_64.rpm qemu-img-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-common-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-debuginfo-1.5.3-105.el7_2.19.i686.rpm qemu-kvm-debuginfo-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-tools-1.5.3-105.el7_2.19.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 7.2): Source: qemu-kvm-1.5.3-105.el7_2.19.src.rpm x86_64: libcacard-1.5.3-105.el7_2.19.i686.rpm libcacard-1.5.3-105.el7_2.19.x86_64.rpm qemu-img-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-common-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-debuginfo-1.5.3-105.el7_2.19.i686.rpm qemu-kvm-debuginfo-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-tools-1.5.3-105.el7_2.19.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 7.2): x86_64: libcacard-devel-1.5.3-105.el7_2.19.i686.rpm libcacard-devel-1.5.3-105.el7_2.19.x86_64.rpm libcacard-tools-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-debuginfo-1.5.3-105.el7_2.19.i686.rpm qemu-kvm-debuginfo-1.5.3-105.el7_2.19.x86_64.rpm Red Hat Enterprise Linux Server Optional E4S (v. 7.2): x86_64: libcacard-devel-1.5.3-105.el7_2.19.i686.rpm libcacard-devel-1.5.3-105.el7_2.19.x86_64.rpm libcacard-tools-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-debuginfo-1.5.3-105.el7_2.19.i686.rpm qemu-kvm-debuginfo-1.5.3-105.el7_2.19.x86_64.rpm Red Hat Enterprise Linux Server Optional TUS (v. 7.2): x86_64: libcacard-devel-1.5.3-105.el7_2.19.i686.rpm libcacard-devel-1.5.3-105.el7_2.19.x86_64.rpm libcacard-tools-1.5.3-105.el7_2.19.x86_64.rpm qemu-kvm-debuginfo-1.5.3-105.el7_2.19.i686.rpm qemu-kvm-debuginfo-1.5.3-105.el7_2.19.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. References: https://access.redhat.com/security/cve/CVE-2018-12126 https://access.redhat.com/security/cve/CVE-2018-12127 https://access.redhat.com/security/cve/CVE-2018-12130 https://access.redhat.com/security/cve/CVE-2019-11091 https://access.redhat.com/security/vulnerabilities/mds https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXNspUNzjgjWX9erEAQhfkA/9HP6cfwhpQxKjz/rm86TM9eKBr5s8oIGz Dau9mOtrJK59rg8l88Tn3/hf/d0VvTfnE+wHlDloeLymATRLpFtMW/rHF12CIgMq Fvkv6lOZnW+3DuRm9034meoasStsFPUjUBocQmxqeNuHDXnjJmo2SREQFjNfXNlO 0umYf0U4IrRgWNGRM1/rpZQDFC5OLMFX47C8Ez8QQZsy2nCuWR6m7LUgEWeMhpTc kcmdg03YJF2C4E0w3PllfQwt1Gl4kuu9RoCHJYGby+1+JKVnFKtqtv4FJlUrEW38 mXeOTmhHbN21cbOjxrCDtp80qK3mRayPh4xN5iP9Ez0Zr6JKJ2fwyYt9SFgpy+Rk 8v4EudyKjp12Xrktmiq8CkrAIwhHRym5B9i/V1AXNlbCZ2AEd0QJvWJU3AFx0ZKH J3N/SD6ALrOjwreG5F45fznTLKYStOVTTUy31ggyBhKBF803gYZruT3ZdT+Tdut1 brLZSquHdf89Dvy3jo+EHR04n5+PQwdzkcpXUQAIBMyKzX8no4ElQxLQ5ZzZ/Il+ WwSSzB/MkJYvpBAk3WUVEtfz6HrzZBQcqy6NjUY+by3p6tKAjlT/vrPruYitZSWx wxxmI3sePQL+oZOc7juEJqZSJ8kKbtsaDazWJR56SNjHZLK60qHZQDrk46DEuX+P So/1STwyQdg= =z2F/ -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

information disclosure

PATCH