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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.1683 kpatch-patch security update 20 April 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kpatch-patch Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2022-25636 CVE-2022-0492 CVE-2021-4083 Original Bulletin: https://access.redhat.com/errata/RHSA-2022:1418 Comment: CVSS (Max): 7.8 CVE-2022-25636 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) CVSS Source: Red Hat Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kpatch-patch security update Advisory ID: RHSA-2022:1418-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:1418 Issue date: 2022-04-19 CVE Names: CVE-2021-4083 CVE-2022-0492 CVE-2022-25636 ===================================================================== 1. Summary: An update is now available for Red Hat Enterprise Linux 8.4 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.8.4) - 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: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492) * kernel: heap out of bounds write in nf_dup_netdev.c (CVE-2022-25636) 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 2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation 2056830 - CVE-2022-25636 kernel: heap out of bounds write in nf_dup_netdev.c 6. Package List: Red Hat Enterprise Linux BaseOS EUS (v.8.4): Source: kpatch-patch-4_18_0-305-1-12.el8.src.rpm kpatch-patch-4_18_0-305_10_2-1-9.el8_4.src.rpm kpatch-patch-4_18_0-305_12_1-1-8.el8_4.src.rpm kpatch-patch-4_18_0-305_17_1-1-7.el8_4.src.rpm kpatch-patch-4_18_0-305_19_1-1-7.el8_4.src.rpm kpatch-patch-4_18_0-305_25_1-1-6.el8_4.src.rpm kpatch-patch-4_18_0-305_28_1-1-4.el8_4.src.rpm kpatch-patch-4_18_0-305_30_1-1-4.el8_4.src.rpm kpatch-patch-4_18_0-305_34_2-1-2.el8_4.src.rpm kpatch-patch-4_18_0-305_3_1-1-11.el8_4.src.rpm kpatch-patch-4_18_0-305_40_1-1-1.el8_4.src.rpm kpatch-patch-4_18_0-305_40_2-1-1.el8_4.src.rpm kpatch-patch-4_18_0-305_7_1-1-10.el8_4.src.rpm ppc64le: kpatch-patch-4_18_0-305-1-12.el8.ppc64le.rpm kpatch-patch-4_18_0-305-debuginfo-1-12.el8.ppc64le.rpm kpatch-patch-4_18_0-305-debugsource-1-12.el8.ppc64le.rpm kpatch-patch-4_18_0-305_10_2-1-9.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_10_2-debuginfo-1-9.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_10_2-debugsource-1-9.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_12_1-1-8.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_12_1-debuginfo-1-8.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_12_1-debugsource-1-8.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_17_1-1-7.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_17_1-debuginfo-1-7.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_17_1-debugsource-1-7.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_19_1-1-7.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_19_1-debuginfo-1-7.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_19_1-debugsource-1-7.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_25_1-1-6.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_25_1-debuginfo-1-6.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_25_1-debugsource-1-6.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_28_1-1-4.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_28_1-debuginfo-1-4.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_28_1-debugsource-1-4.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_30_1-1-4.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_30_1-debuginfo-1-4.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_30_1-debugsource-1-4.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_34_2-1-2.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_34_2-debuginfo-1-2.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_34_2-debugsource-1-2.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_3_1-1-11.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_3_1-debuginfo-1-11.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_3_1-debugsource-1-11.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_40_1-1-1.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_40_1-debuginfo-1-1.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_40_1-debugsource-1-1.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_40_2-1-1.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_40_2-debuginfo-1-1.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_40_2-debugsource-1-1.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_7_1-1-10.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_7_1-debuginfo-1-10.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_7_1-debugsource-1-10.el8_4.ppc64le.rpm x86_64: kpatch-patch-4_18_0-305-1-12.el8.x86_64.rpm kpatch-patch-4_18_0-305-debuginfo-1-12.el8.x86_64.rpm kpatch-patch-4_18_0-305-debugsource-1-12.el8.x86_64.rpm kpatch-patch-4_18_0-305_10_2-1-9.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_10_2-debuginfo-1-9.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_10_2-debugsource-1-9.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_12_1-1-8.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_12_1-debuginfo-1-8.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_12_1-debugsource-1-8.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_17_1-1-7.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_17_1-debuginfo-1-7.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_17_1-debugsource-1-7.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_19_1-1-7.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_19_1-debuginfo-1-7.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_19_1-debugsource-1-7.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_25_1-1-6.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_25_1-debuginfo-1-6.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_25_1-debugsource-1-6.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_28_1-1-4.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_28_1-debuginfo-1-4.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_28_1-debugsource-1-4.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_30_1-1-4.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_30_1-debuginfo-1-4.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_30_1-debugsource-1-4.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_34_2-1-2.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_34_2-debuginfo-1-2.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_34_2-debugsource-1-2.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_3_1-1-11.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_3_1-debuginfo-1-11.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_3_1-debugsource-1-11.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_40_1-1-1.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_40_1-debuginfo-1-1.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_40_1-debugsource-1-1.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_40_2-1-1.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_40_2-debuginfo-1-1.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_40_2-debugsource-1-1.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_7_1-1-10.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_7_1-debuginfo-1-10.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_7_1-debugsource-1-10.el8_4.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-2022-0492 https://access.redhat.com/security/cve/CVE-2022-25636 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 2022 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYl80udzjgjWX9erEAQgE7A//Vo+WRJXpOuWN7TSUMzc0ohIFQ6Vz2n2S 7XfT0D1EhTKDysLQKzItKoKjW5RpbJtHmu2h2rsITxHZGUZ+RqF9G0rLCZf2Bcil sRtm2Pe895OnRw+v/Bg5KWpgfjw0OjAjvwQVEgFsiZyVK1BeM2QOTQ/46iaitEnj 3GylGh9EWMV9Wk3tlS0mcnw867QNaLwLyuHx9MuKPXz75yszhHj3C5lYWku5dUfC WpxhV0L7OizWelULlg8ZcftGcjhCY5alGVdu/IDlP6DVJCv+Wzl6aeIbW5p1jBse oc2T78irRxRjFZgYkuTM9Y1n5Zf9spr/I6ioX5dOClvsVurLLa17GW5qhsY+hajB Kands4Dg2Jw+Pv47eu2NSUzVtfclmAtJljR58gUFAxOEELBNbHdrDWjG8ahpRkom xuXgzLeaMA+PpPJXjSe/ieVAaknN+iBn/pZQXsMO2dWculDKQPA69XYbelc6/hD3 lpSc3t3Ek0grmyBE1spNIXsBmcLSIdILZvtnB7dfyCSqZr//+p8WELruf839X4HF kiw5UItaxyOdymPdT8sow2VL+24EMX3YM1/HCFQETJVkZird4gG28RStytNWgkn+ NI4vbU3ZuhQch4Yr4cK+fBHX9gRcLNYEQ59xLQ7/wjKsRygmjqMTvcbLVyzsWThq gZ8+Yj2cdDA= =anGY - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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