ID

VAR-202006-0241

CVE

CVE-2020-0543

TITLE

Red Hat Security Advisory 2021-3322-01

DESCRIPTION

Incomplete cleanup from specific special register read operations in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. Intel 06_3DH and Intel 06_9EH are both a central processing unit (CPU) product of Intel Corporation of the United States. Security vulnerabilities exist in several Intel products. The following products and versions are affected: Intel Celeron 1000M; Celeron 1005M; Celeron 1007U; Celeron 1019Y; Celeron 1020m, etc. It exists that the Marvell WiFi-Ex Driver in the Linux kernel did not properly validate status lengths in messages received from an access point, leading to a buffer overflow. (CVE-2020-12654). Description: The microcode_ctl packages provide microcode updates for Intel. ========================================================================= Ubuntu Security Notice USN-4387-1 June 09, 2020 linux, linux-aws, linux-aws-5.3, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3 vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 19.10 - Ubuntu 18.04 LTS 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-azure: Linux kernel for Microsoft Azure Cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-aws-5.3: Linux kernel for Amazon Web Services (AWS) systems - linux-azure-5.3: Linux kernel for Microsoft Azure Cloud systems - linux-gcp-5.3: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke-5.3: Linux kernel for Google Container Engine (GKE) systems - linux-hwe: Linux hardware enablement (HWE) kernel - linux-oracle-5.3: Linux kernel for Oracle Cloud systems Details: It was discovered that the F2FS file system implementation in the Linux kernel did not properly perform bounds checking on xattrs in some situations. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2020-0067) It was discovered that memory contents previously stored in microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly exposed to processes on the same or different processor cores. A local attacker could use this to expose sensitive information. (CVE-2020-0543) Piotr Krysiuk discovered that race conditions existed in the file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12114) It was discovered that the USB susbsystem's scatter-gather implementation in the Linux kernel did not properly take data references in some situations, leading to a use-after-free. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-12464) Bui Quang Minh discovered that the XDP socket implementation in the Linux kernel did not properly validate meta-data passed from user space, leading to an out-of-bounds write vulnerability. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-12659) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 19.10: linux-image-5.3.0-1023-aws 5.3.0-1023.25 linux-image-5.3.0-1023-kvm 5.3.0-1023.25 linux-image-5.3.0-1024-oracle 5.3.0-1024.26 linux-image-5.3.0-1026-gcp 5.3.0-1026.28 linux-image-5.3.0-1028-azure 5.3.0-1028.29 linux-image-5.3.0-59-generic 5.3.0-59.53 linux-image-5.3.0-59-generic-lpae 5.3.0-59.53 linux-image-5.3.0-59-lowlatency 5.3.0-59.53 linux-image-5.3.0-59-snapdragon 5.3.0-59.53 linux-image-aws 5.3.0.1023.34 linux-image-azure 5.3.0.1028.47 linux-image-gcp 5.3.0.1026.37 linux-image-generic 5.3.0.59.49 linux-image-generic-lpae 5.3.0.59.49 linux-image-gke 5.3.0.1026.37 linux-image-kvm 5.3.0.1023.21 linux-image-lowlatency 5.3.0.59.49 linux-image-oracle 5.3.0.1024.40 linux-image-snapdragon 5.3.0.59.49 linux-image-virtual 5.3.0.59.49 Ubuntu 18.04 LTS: linux-image-5.3.0-1023-aws 5.3.0-1023.25~18.04.1 linux-image-5.3.0-1024-oracle 5.3.0-1024.26~18.04.1 linux-image-5.3.0-1026-gcp 5.3.0-1026.28~18.04.1 linux-image-5.3.0-1026-gke 5.3.0-1026.28~18.04.1 linux-image-5.3.0-1028-azure 5.3.0-1028.29~18.04.1 linux-image-5.3.0-59-generic 5.3.0-59.53~18.04.1 linux-image-5.3.0-59-generic-lpae 5.3.0-59.53~18.04.1 linux-image-5.3.0-59-lowlatency 5.3.0-59.53~18.04.1 linux-image-aws 5.3.0.1023.23 linux-image-azure 5.3.0.1028.25 linux-image-gcp 5.3.0.1026.21 linux-image-generic-hwe-18.04 5.3.0.59.113 linux-image-generic-lpae-hwe-18.04 5.3.0.59.113 linux-image-gke-5.3 5.3.0.1026.13 linux-image-gkeop-5.3 5.3.0.59.113 linux-image-lowlatency-hwe-18.04 5.3.0.59.113 linux-image-oracle 5.3.0.1024.22 linux-image-snapdragon-hwe-18.04 5.3.0.59.113 linux-image-virtual-hwe-18.04 5.3.0.59.113 Please note that the mitigation for CVE-2020-0543 requires a processor microcode update to be applied, either from your system manufacturer or via the intel-microcode package. The kernel update for this issue provides the ability to disable the mitigation and to report vulnerability status. 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. Unfortunately, that update prevented certain processors in the Intel Skylake family (06_4EH) from booting successfully. Additonally, on Ubuntu 20.04 LTS, late loading of microcode was enabled, which could lead to system instability. Please note that the 'dis_ucode_ldr' kernel command line option can be added in the boot menu to disable microcode loading for system recovery. We apologize for the inconvenience. (CVE-2020-0548) It was discovered that on some Intel processors, data from the most recently evicted modified L1 data cache (L1D) line may be propagated into an unused (invalid) L1D fill buffer. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: microcode_ctl security, bug fix and enhancement update Advisory ID: RHSA-2020:2707-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:2707 Issue date: 2020-06-23 CVE Names: CVE-2020-0543 CVE-2020-0548 CVE-2020-0549 ==================================================================== 1. Summary: Updated microcode_ctl packages that fix several security bugs and add various enhancements are now available. 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 Server AUS (v. 6.5) - x86_64 3. Description: Security Fix(es): * hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543) * hw: L1D Cache Eviction Sampling (CVE-2020-0549) * hw: Vector Register Data Sampling (CVE-2020-0548) 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. Bug Fix(es): * Update Intel CPU microcode to microcode-20200609 release: - Update of 06-2d-06/0x6d (SNB-E/EN/EP C1/M0) microcode from revision 0x61f up to 0x621; - Update of 06-2d-07/0x6d (SNB-E/EN/EP C2/M1) microcode from revision 0x718 up to 0x71a; - Update of 06-3c-03/0x32 (HSW C0) microcode from revision 0x27 up to 0x28; - Update of 06-3d-04/0xc0 (BDW-U/Y E0/F0) microcode from revision 0x2e up to 0x2f; - Update of 06-45-01/0x72 (HSW-U C0/D0) microcode from revision 0x25 up to 0x26; - Update of 06-46-01/0x32 (HSW-H C0) microcode from revision 0x1b up to 0x1c; - Update of 06-47-01/0x22 (BDW-H/Xeon E3 E0/G0) microcode from revision 0x21 up to 0x22; - Update of 06-4e-03/0xc0 (SKL-U/Y D0) microcode from revision 0xd6 up to 0xdc; - Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000151 up to 0x1000157; - Update of 06-55-04/0xb7 (SKX-SP H0/M0/U0, SKX-D M1) microcode (in intel-06-55-04/intel-ucode/06-55-04) from revision 0x2000065 up to 0x2006906; - Update of 06-55-06/0xbf (CLX-SP B0) microcode from revision 0x400002c up to 0x4002f01; - Update of 06-55-07/0xbf (CLX-SP B1) microcode from revision 0x500002c up to 0x5002f01; - Update of 06-5e-03/0x36 (SKL-H/S R0/N0) microcode from revision 0xd6 up to 0xdc; - Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x46 up to 0x78; - Update of 06-8e-09/0x10 (AML-Y22 H0) microcode from revision 0xca up to 0xd6; - Update of 06-8e-09/0xc0 (KBL-U/Y H0) microcode from revision 0xca up to 0xd6; - Update of 06-8e-0a/0xc0 (CFL-U43e D0) microcode from revision 0xca up to 0xd6; - Update of 06-8e-0b/0xd0 (WHL-U W0) microcode from revision 0xca up to 0xd6; - Update of 06-8e-0c/0x94 (AML-Y42 V0, CML-Y42 V0, WHL-U V0) microcode from revision 0xca up to 0xd6; - Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode from revision 0xca up to 0xd6; - Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E3 U0) microcode from revision 0xca up to 0xd6; - Update of 06-9e-0b/0x02 (CFL-S B0) microcode from revision 0xca up to 0xd6; - Update of 06-9e-0c/0x22 (CFL-H/S P0) microcode from revision 0xca up to 0xd6; - Update of 06-9e-0d/0x22 (CFL-H R0) microcode from revision 0xca up to 0xd6. * Do not update 06-4e-03 (SKL-U/Y) and 06-5e-03 (SKL-H/S/Xeon E3 v5) to revision 0xdc, use 0xd6 by default. * Enable 06-2d-07 (SNB-E/EN/EP) caveat by default. * Enable 06-55-04 (SKL-SP/X/W) caveat by default. * Avoid find being SIGPIPE'd on early "grep -q" exit in the dracut script. * Re-generate initramfs not only for the currently running kernel, but for several recently installed kernels as well. * Change the URL in the intel-microcode2ucode.8 to point to the GitHub repository since the microcode download section at Intel Download Center does not exist anymore. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1788786 - CVE-2020-0548 hw: Vector Register Data Sampling 1788788 - CVE-2020-0549 hw: L1D Cache Eviction Sampling 1827165 - CVE-2020-0543 hw: Special Register Buffer Data Sampling (SRBDS) 1840536 - [rhel-6.5.z] Package microcode-20200520 release 1848989 - [rhel-6.5.z] skylake (06-4e-03) microcode update hangs 1848998 - [rhel-6.5.z] Enable SNB-EP caveat by default 6. Package List: Red Hat Enterprise Linux Server AUS (v. 6.5): Source: microcode_ctl-1.17-17.31.el6_5.src.rpm x86_64: microcode_ctl-1.17-17.31.el6_5.x86_64.rpm microcode_ctl-debuginfo-1.17-17.31.el6_5.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-2020-0543 https://access.redhat.com/security/cve/CVE-2020-0548 https://access.redhat.com/security/cve/CVE-2020-0549 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/solutions/5142691 https://access.redhat.com/solutions/l1d-cache-eviction-and-vector-register-sampling 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXvIiB9zjgjWX9erEAQip6Q//a/OcA4/5/6HH8vySZZ51PR88lsHItrOC wsJm0AS0VmpsS4+dhpiOUdrZ/rtqKN59CRVIRxGDAtcPTXYpSW4CcKuHIgUKiqKz d1VdU8+AWXfZ/JLUWqW6hZ0ZC+n1othdbQjQgvumtX0tjY6lAfvEGBDjpiEOlHka VO88fZ+ct2G5IE7GRD/V5x8nfLVI7RlEkniaKKOqyU5QsHEs6hbxFOH8uos73kBv hsOICaxlRtxy9gtrJ5P9B6P671YzbIfncRDFySOMvLxVAf65lTJGLQKR/S41eem2 Ztij4QJvrnbmQxbPrSDM1eZvV+Ovpp6vZxStj3+pkWBKDZErtteYfnE3xxF+uqj3 mDlmLklRugVmZMoVyCvxtKZARIMEH1RhMOi5SGqwUr8gCO8CbuFcOZ8LcRMtyoiI xOnvN6I2bpC+u+JohAZq44/WEwpL6jxwj+eO2gSKfi78+FYzGI45Rpnork8nEF09 tOCRj2wbY/Tgbs9vgOG5GExywhrNCndT7eLgJXVUTmlDsladhj/mNRG2So7Qu4Wa lzVgdzSjVt7esvvfK1UiFmWdC6Xea845DcmULhbKv15SAD6uM5B8rIP0CfN4W3Pi giKWiOk75Wa1VdHEvLBcwJRX4Oxw6ftgdafwIN0D5UFsbrHTt+BWIMAoE/caCpQu uHHQ+qmW7l8=/zi+ -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce

AFFECTED PRODUCTS