-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2021:1267-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:1267 Issue date: 2021-04-20 CVE Names: CVE-2020-14351 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7.4 Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update Support, and Red Hat Enterprise Linux 7.4 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. 7.4) - noarch, x86_64 Red Hat Enterprise Linux Server E4S (v. 7.4) - noarch, ppc64le, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server Optional E4S (v. 7.4) - ppc64le, x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server TUS (v. 7.4) - noarch, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: out-of-bounds read in libiscsi module (CVE-2021-27364) * kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365) * kernel: performance counters race condition use-after-free (CVE-2020-14351) * kernel: iscsi: unrestricted access to sessions and handles (CVE-2021-27363) 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): * Enable CI and changelog for GitLab workflow (BZ#1930932) 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 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1862849 - CVE-2020-14351 kernel: performance counters race condition use-after-free 1930078 - CVE-2021-27365 kernel: heap buffer overflow in the iSCSI subsystem 1930079 - CVE-2021-27363 kernel: iscsi: unrestricted access to sessions and handles 1930080 - CVE-2021-27364 kernel: out-of-bounds read in libiscsi module 6. Package List: Red Hat Enterprise Linux Server AUS (v. 7.4): Source: kernel-3.10.0-693.84.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.84.1.el7.noarch.rpm kernel-doc-3.10.0-693.84.1.el7.noarch.rpm x86_64: kernel-3.10.0-693.84.1.el7.x86_64.rpm kernel-debug-3.10.0-693.84.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.84.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.84.1.el7.x86_64.rpm kernel-devel-3.10.0-693.84.1.el7.x86_64.rpm kernel-headers-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.84.1.el7.x86_64.rpm perf-3.10.0-693.84.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm python-perf-3.10.0-693.84.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm Red Hat Enterprise Linux Server E4S (v. 7.4): Source: kernel-3.10.0-693.84.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.84.1.el7.noarch.rpm kernel-doc-3.10.0-693.84.1.el7.noarch.rpm ppc64le: kernel-3.10.0-693.84.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-693.84.1.el7.ppc64le.rpm kernel-debug-3.10.0-693.84.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.84.1.el7.ppc64le.rpm kernel-devel-3.10.0-693.84.1.el7.ppc64le.rpm kernel-headers-3.10.0-693.84.1.el7.ppc64le.rpm kernel-tools-3.10.0-693.84.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm kernel-tools-libs-3.10.0-693.84.1.el7.ppc64le.rpm perf-3.10.0-693.84.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm python-perf-3.10.0-693.84.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm x86_64: kernel-3.10.0-693.84.1.el7.x86_64.rpm kernel-debug-3.10.0-693.84.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.84.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.84.1.el7.x86_64.rpm kernel-devel-3.10.0-693.84.1.el7.x86_64.rpm kernel-headers-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.84.1.el7.x86_64.rpm perf-3.10.0-693.84.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm python-perf-3.10.0-693.84.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 7.4): Source: kernel-3.10.0-693.84.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.84.1.el7.noarch.rpm kernel-doc-3.10.0-693.84.1.el7.noarch.rpm x86_64: kernel-3.10.0-693.84.1.el7.x86_64.rpm kernel-debug-3.10.0-693.84.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.84.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.84.1.el7.x86_64.rpm kernel-devel-3.10.0-693.84.1.el7.x86_64.rpm kernel-headers-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.84.1.el7.x86_64.rpm perf-3.10.0-693.84.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm python-perf-3.10.0-693.84.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 7.4): x86_64: kernel-debug-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.84.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional E4S (v. 7.4): ppc64le: kernel-debug-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm kernel-debug-devel-3.10.0-693.84.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.84.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-693.84.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.84.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional TUS (v. 7.4): x86_64: kernel-debug-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.84.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.84.1.el7.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-2020-14351 https://access.redhat.com/security/cve/CVE-2021-27363 https://access.redhat.com/security/cve/CVE-2021-27364 https://access.redhat.com/security/cve/CVE-2021-27365 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYH7PN9zjgjWX9erEAQj00Q//dwJUA3XoZ8Ferzd26sJ/DcX6mUEUBmHR ak7tX27vETn/72UdgkHJkB0XRqsn6yjQBdowxXQe7zdcmnPFemMlluDzwNnNw2ME FqLcIPgWI7qct32+csGDvOfUDz912A+Sc9XB2oekMpXgeMunfxz3FfmocZPVKcqh OJq9MTkjJcktHOKvwr40xnYKk/0cKUqcjqQxGZbYCr0RZ3u88vHd8JIDZqmBr+dk tYHIs5lIZ2jICescQf9nwQByB4jm8BX7WDqmdyvV8jrrRzVYhLyFZdDDo9nosDVK 4y++m9pLVqHtkojPscbn2+NBEDHJxUmtFn5JabSLb51Jog0tGu+QC5MEtfqc5jgH Cn/M47TR6OiB88i8FdQva40HWGsEQanZaLeNWRGEh+AaVZt0WD7zgzAbKghZ8iLY EypWscF8RYcEN27Q6DNcWwozLyfWGbH3Sex4OMsPL1jqtki0+6HD/ezI6HDmnHy0 4FuCbavgKBRuHHZXG7jX/rN6FHMg/7My4LSHk9fmj2PszaTyZZpFqz0mcBCMJzNX rbgPNtvbOpjv4sUn22LNNA77lOGw+cKwXIU0FKwDBXx+Ak7riGn2l6OpTReUa3qj Eck9dxJiZAzSNunG9HN8dBXUprcuo2WYJ4TV+KwxCLQbQbOkrnHD6bSHXRv70bxK HUMRmNWYCrM= =INXh -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce