01 March 2023
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.1260 kpatch-patch security update 1 March 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kpatch-patch Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2023-0179 CVE-2022-4379 CVE-2022-4378 CVE-2022-3564 Original Bulletin: https://access.redhat.com/errata/RHSA-2023:1008 Comment: CVSS (Max): 7.8 CVE-2023-0179 (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-2023:1008-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:1008 Issue date: 2023-02-28 CVE Names: CVE-2022-3564 CVE-2022-4378 CVE-2022-4379 CVE-2023-0179 ===================================================================== 1. Summary: An update for kpatch-patch is now available for Red Hat Enterprise Linux 9. 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 (v. 9) - 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: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c (CVE-2022-3564) * kernel: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378) * kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service attack (CVE-2022-4379) * kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan (CVE-2023-0179) 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/): 2150999 - CVE-2022-3564 kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c 2152548 - CVE-2022-4378 kernel: stack overflow in do_proc_dointvec and proc_skip_spaces 2152807 - CVE-2022-4379 kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service attack 2161713 - CVE-2023-0179 kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan 6. Package List: Red Hat Enterprise Linux BaseOS (v. 9): Source: kpatch-patch-5_14_0-162_12_1-1-1.el9_1.src.rpm kpatch-patch-5_14_0-162_6_1-1-2.el9_1.src.rpm ppc64le: kpatch-patch-5_14_0-162_12_1-1-1.el9_1.ppc64le.rpm kpatch-patch-5_14_0-162_12_1-debuginfo-1-1.el9_1.ppc64le.rpm kpatch-patch-5_14_0-162_12_1-debugsource-1-1.el9_1.ppc64le.rpm kpatch-patch-5_14_0-162_6_1-1-2.el9_1.ppc64le.rpm kpatch-patch-5_14_0-162_6_1-debuginfo-1-2.el9_1.ppc64le.rpm kpatch-patch-5_14_0-162_6_1-debugsource-1-2.el9_1.ppc64le.rpm x86_64: kpatch-patch-5_14_0-162_12_1-1-1.el9_1.x86_64.rpm kpatch-patch-5_14_0-162_12_1-debuginfo-1-1.el9_1.x86_64.rpm kpatch-patch-5_14_0-162_12_1-debugsource-1-1.el9_1.x86_64.rpm kpatch-patch-5_14_0-162_6_1-1-2.el9_1.x86_64.rpm kpatch-patch-5_14_0-162_6_1-debuginfo-1-2.el9_1.x86_64.rpm kpatch-patch-5_14_0-162_6_1-debugsource-1-2.el9_1.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-2022-3564 https://access.redhat.com/security/cve/CVE-2022-4378 https://access.redhat.com/security/cve/CVE-2022-4379 https://access.redhat.com/security/cve/CVE-2023-0179 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <firstname.lastname@example.org>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2023 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBY/5H89zjgjWX9erEAQj68A/8CPn8dCtYtKo+AOdfJQvxFDs2NWHpj4dg Ais0vh62HgQnDlU2t1PYw64eJqShOnE2G0Ms7ldkxlOX7DVgd486cWz+QcUrpjQv sWYuhD3tPCXZh26WxEd7F/Cfa0f99B4Lz5lZv8qMI0HK94Qo5qZS6xquINbfrQkz pg/MITz0lecz69rjGXRqbh+Oq05jfQjHgdotWUt7xZL3KfPw1ouNEHlb3fthnoyV jVmPZHfJJrnfE5r6O+8BOJnb42rTep2nlSbuu33Xcl8RS7zelcwatyRlx6MxdoaL eYZ9skT1iD8tcDCTy7ojPUvbzL93m3WRq6K6q83jul5h3Ad3o0/nK8jVUja22gYC yfN2Uk27NyaNvkT3INwruYKg8yOH5ho+xnlSxyoA/pGpbD/6rEYB7w25R7Czuqus 0V/WAMEtuyJYvZ6y5DApR6ImuVg/94+Lcm2A6CjiiPby1egzMNnTyh4eBYGws4k0 XKca2pZh2tAW2DM9y9+pf07DxVaf9ywAfSNULgJi9U5beagojx12I63FUer4ibHG fRymkj12GGXrMBZOa9k+OIGbE/V9nCrh+ZBxChHp3UyEV7SXa3otI6l3PPeLOMWt HapPvs4WDK0F9JCjun68aomcFZkLLY9Umjfxv/pIBK3shiU+pZ51z4Iz+G8AB5Di pCzIqbRcd7U= =3b/w - -----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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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: firstname.lastname@example.org Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBY/6SCskNZI30y1K9AQg4hw//Y2iXjQdSkRRf2qjTDs0hFfMEL97mc3ic YfS9aDToRr5hOwtzUC5J/9LsaO98z9h9ZXBebxBcATylgZ5nZfjtrQzzpB+K0vpM W5AKle1WfZz7fgrdAad47xmwHSPvLJ2TTp4wHgyyXOMdJ58T8rNr5jb+NGP4oYDG 2SBSn+AgXG/624+knMW20xKUZP5Gz/hzK73JXkUekr1h+fR7TNmwDuumShQaAIlw RxsOgV8gaxWj0UrU2e3bFpGr/+9d5nB6sJ6YG4EURaTzxHo8k6zROMbyy0scl2wY yU76bRL19Lgaom2JK1UhkUOXQMoiLBhUV3INm+eYy1LSUB5MEo0yLpF6bsJK8zfh uIIpvyfonWTOK0xt8VCBZMU/CFCPvVyqSjvDNX9rlFITK+YkL5nqROID9eE5pZ+S FtczIVyfMTV7CSAZ7+w7VA7NXlxNkX4FwZ2iOk/5tE9ptGFSWIqfcIOmViad9zZr EN/d6P+WPL/p4BvM8TkCP42yac8IBPV7RCOD/tEBOAN2gswpg261noVYCz5eLehn aWn6AlDydPzEnfro07pCU72q3txGcIruolkB562rh4Pcz7GO9XJCwxVVIs8OPLMU e0Wiw5CmmjML+guWlAUANTjTb6n21fsmFp5r9Nw4/9HRzPJIzs2KoJI0zsvHE2ab +gtDRC+8lLA= =jywp -----END PGP SIGNATURE-----