-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kpatch-patch security update Advisory ID: RHSA-2022:0925-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:0925 Issue date: 2022-03-15 CVE Names: CVE-2021-4083 CVE-2022-0330 CVE-2022-0492 CVE-2022-22942 ==================================================================== 1. Summary: An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. 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 BaseOS EUS (v. 8.2) - ppc64le, x86_64 3. Description: This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Security Fix(es): * kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083) * kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330) * kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492) * kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942) 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 5. Bugs fixed (https://bugzilla.redhat.com/): 2029923 - CVE-2021-4083 kernel: fget: check that the fd still exists after getting a ref to it 2042404 - CVE-2022-0330 kernel: possible privileges escalation due to missing TLB flush 2044809 - CVE-2022-22942 kernel: failing usercopy allows for use-after-free exploitation 2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation 6. Package List: Red Hat Enterprise Linux BaseOS EUS (v. 8.2): Source: kpatch-patch-4_18_0-193_47_1-1-10.el8_2.src.rpm kpatch-patch-4_18_0-193_51_1-1-7.el8_2.src.rpm kpatch-patch-4_18_0-193_56_1-1-6.el8_2.src.rpm kpatch-patch-4_18_0-193_60_2-1-5.el8_2.src.rpm kpatch-patch-4_18_0-193_64_1-1-4.el8_2.src.rpm kpatch-patch-4_18_0-193_65_2-1-3.el8_2.src.rpm kpatch-patch-4_18_0-193_68_1-1-3.el8_2.src.rpm kpatch-patch-4_18_0-193_70_1-1-2.el8_2.src.rpm kpatch-patch-4_18_0-193_71_1-1-2.el8_2.src.rpm kpatch-patch-4_18_0-193_75_1-1-1.el8_2.src.rpm ppc64le: kpatch-patch-4_18_0-193_47_1-1-10.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_47_1-debuginfo-1-10.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_47_1-debugsource-1-10.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_51_1-1-7.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_51_1-debuginfo-1-7.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_51_1-debugsource-1-7.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_56_1-1-6.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_56_1-debuginfo-1-6.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_56_1-debugsource-1-6.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_60_2-1-5.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_60_2-debuginfo-1-5.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_60_2-debugsource-1-5.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_64_1-1-4.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_64_1-debuginfo-1-4.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_64_1-debugsource-1-4.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_65_2-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_65_2-debuginfo-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_65_2-debugsource-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_68_1-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_68_1-debuginfo-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_68_1-debugsource-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_70_1-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_70_1-debuginfo-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_70_1-debugsource-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_71_1-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_71_1-debuginfo-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_71_1-debugsource-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_75_1-1-1.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_75_1-debuginfo-1-1.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_75_1-debugsource-1-1.el8_2.ppc64le.rpm x86_64: kpatch-patch-4_18_0-193_47_1-1-10.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_47_1-debuginfo-1-10.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_47_1-debugsource-1-10.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_51_1-1-7.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_51_1-debuginfo-1-7.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_51_1-debugsource-1-7.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_56_1-1-6.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_56_1-debuginfo-1-6.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_56_1-debugsource-1-6.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_60_2-1-5.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_60_2-debuginfo-1-5.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_60_2-debugsource-1-5.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_64_1-1-4.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_64_1-debuginfo-1-4.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_64_1-debugsource-1-4.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_65_2-1-3.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_65_2-debuginfo-1-3.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_65_2-debugsource-1-3.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_68_1-1-3.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_68_1-debuginfo-1-3.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_68_1-debugsource-1-3.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_70_1-1-2.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_70_1-debuginfo-1-2.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_70_1-debugsource-1-2.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_71_1-1-2.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_71_1-debuginfo-1-2.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_71_1-debugsource-1-2.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_75_1-1-1.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_75_1-debuginfo-1-1.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_75_1-debugsource-1-1.el8_2.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-2021-4083 https://access.redhat.com/security/cve/CVE-2022-0330 https://access.redhat.com/security/cve/CVE-2022-0492 https://access.redhat.com/security/cve/CVE-2022-22942 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 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYjCsKNzjgjWX9erEAQg19xAAit8UBrzV+5lQ8dcFkzTgZwvbDRnt+x1K CtGEpFkqPsjloubHFckRaU7XS8/8IHFYZrSnuhSNeQ33QScGGSqVuxFrCbeLprOk 4i+wckgRdtI5dZO6UWNLv1cJnFopp57HuN+RX5vpfNontLIKMVfWhhnAWH08qRD8 QxiUVzH3qXuPCTv7cco12eGomOlkWYO8CPpJjvBaJ0mQ1rsStCgc5s5scIvSF3/x zj6QTZiidfYh37ofaP8IO3WE3l/mLDZBZdLy2WSnL7a597+F/79thc8LJRkgMwjs kT9mxqKclYRSZUWDFmKw3Tr5N7lcVKQEjVO4oy4Xe1+GRausg3L62wXWbntoAA3n lqO21/9jRxKaxx65e7VDNqWSNqKIAJrLzphCcBdOnrE3mPoNFLmRMsLhEXe4pgPR eLvlr5AUAOcAOhHUfHRT+kt+IdHb1mnJp9WRfCCG+GHl05swZds6MQsuKPrVvjKo MdFpZkJD9yVPe9hBJL/heJEgiA9YZk1c7V0aWoGO39Xm3i/GNCB1PLmH5txOZXmx Q/6XD342cBvX7ocD6HCC0da2Ui5S4iVprEX4RkLAV0NsfSZiECqdYFKHwnXcHJZW lElSjq6kuNRejqQi5NosaWXF+oSvKgInuIZYPh0xW/dMzDONlGaFkbMRqOdw+kS9 49+TjdVVwIU=/0ba -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce