ID

VAR-202006-0241

CVE

CVE-2020-0543

TITLE

plural  Intel(R)  Information leakage vulnerabilities in products

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. plural Intel(R) The product contains a vulnerability related to information leakage.Information may be obtained. 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. Description: The microcode_ctl packages provide microcode updates for Intel. Software Description: - linux: Linux kernel Details: It was discovered 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. A physically proximate attacker controlling an access point could use this to construct messages that could possibly result in arbitrary code execution. The kernel update for this issue provides the ability to disable the mitigation and to report vulnerability status. 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. ========================================================================= Ubuntu Security Notice USN-4385-2 June 10, 2020 intel-microcode regression ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 19.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 ESM Summary: USN-4385-1 introduced a regression in the Intel Microcode for some processors. 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. This update reverts the microcode update for the Skylake processor family and disables the late loading option on Ubuntu 20.04 LTS. 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. Original advisory details: 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) It was discovered that on some Intel processors, partial data values previously read from a vector register on a physical core may be propagated into unused portions of the store buffer. A local attacker could possible use this to expose sensitive information. (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. A local attacker could possibly use this to expose sensitive information. (CVE-2020-0549) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: intel-microcode 3.20200609.0ubuntu0.20.04.2 Ubuntu 19.10: intel-microcode 3.20200609.0ubuntu0.19.10.2 Ubuntu 18.04 LTS: intel-microcode 3.20200609.0ubuntu0.18.04.1 Ubuntu 16.04 LTS: intel-microcode 3.20200609.0ubuntu0.16.04.1 Ubuntu 14.04 ESM: intel-microcode 3.20200609.0ubuntu0.14.04.1 After a standard system update you need to reboot your computer to make all the necessary changes. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: microcode_ctl security, bug fix and enhancement update Advisory ID: RHSA-2020:2758-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:2758 Issue date: 2020-06-29 CVE Names: CVE-2020-0543 CVE-2020-0548 CVE-2020-0549 ==================================================================== 1. Summary: An update for microcode_ctl is now available for Red at Enterprise Linux 7.7 Extended Update Support. 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 ComputeNode EUS (v. 7.7) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.7) - 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) 1849064 - [rhel-7.7.z] Enable SNB-EP caveat by default 6. Package List: Red Hat Enterprise Linux ComputeNode EUS (v. 7.7): Source: microcode_ctl-2.1-53.9.el7_7.src.rpm x86_64: microcode_ctl-2.1-53.9.el7_7.x86_64.rpm microcode_ctl-debuginfo-2.1-53.9.el7_7.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.7): Source: microcode_ctl-2.1-53.9.el7_7.src.rpm x86_64: microcode_ctl-2.1-53.9.el7_7.x86_64.rpm microcode_ctl-debuginfo-2.1-53.9.el7_7.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 iQIVAwUBXvmiYtzjgjWX9erEAQjnsRAAgsxHgZjr9o6qeNum6YeYF7ZGJK55Nd4k sj8Va8QDccawPxxuqbLV3vXUvrwOtoVwg+XW8RAVsK3bfvQGld+JpvAuiQuSq5RY R0Gi1Ro7Tc+feK69oZY+BN20BszXIOXdnKseBqfNlNX/jp/+WOISC0s9IShpNTL0 CY7/LqaWtcNDvIhH2DD+JknOwcEwc5HI4bpCTpND1EjYoU+xhNQc+yhkVLe8Rr5I G5Nbb8VhMBV4oGLUgnhWok2aGiYDgluG9jjGLNfYTouPFu9WHS4uRjttSuGWGvZv Z3ZzK8hGwumxS+ezzy5zFPn808s2365en/AABO66nOTulzIPLPH8GV/dVqTfaxwy 0UozYfvpFPG+OM3YqDmfxBe9pgN6Y+a/wOg67W8uK7f/6o8EDhfl4RxefUaxypea A7g+XfxdVOJ4hYN1UsW6yGJomt1x7pp25gpHkcoBRuDGVdy2BxL3uG5Ak1r0RVKM mjyyU7K+EN9FhERCb5H1trEUWjcS+QKY2lyjguNA/fogca0fviHWDTh5l9PpKDTe hPRxbAh0FCD/hc0Qe2g88wjkZlmRSoXsbcfVw40cy1kJZvjvf0xZ2ilqswGiJqGE g3b+h3+sl8WozhNzEfxuA3jzgASf3WCZ9NK6WuNtEVNUopn4dXUjDJuL/yDFmyYl u/OaqtGVS2M=iocg -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce

AFFECTED PRODUCTS