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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.2078 kernel-rt security and bug fix update 12 April 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel-rt Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2023-0386 Original Bulletin: https://access.redhat.com/errata/RHSA-2023:1691 Comment: CVSS (Max): 7.0 CVE-2023-0386 (CVSS:3.1/AV:L/AC:H/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:H/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: kernel-rt security and bug fix update Advisory ID: RHSA-2023:1691-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:1691 Issue date: 2023-04-11 CVE Names: CVE-2023-0386 ===================================================================== 1. Summary: An update for kernel-rt 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 Real Time (v. 9) - x86_64 Red Hat Enterprise Linux Real Time for NFV (v. 9) - x86_64 3. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: FUSE filesystem low-privileged user privileges escalation (CVE-2023-0386) 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): * kernel-rt: update RT source tree to the latest RHEL-9.1.z3 Batch (BZ#2182066) 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/): 2159505 - CVE-2023-0386 kernel: FUSE filesystem low-privileged user privileges escalation 6. Package List: Red Hat Enterprise Linux Real Time for NFV (v. 9): Source: kernel-rt-5.14.0-162.23.1.rt21.186.el9_1.src.rpm x86_64: kernel-rt-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-core-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-core-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-devel-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-kvm-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-modules-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debuginfo-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-devel-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-kvm-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-modules-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-modules-extra-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm Red Hat Enterprise Linux Real Time (v. 9): Source: kernel-rt-5.14.0-162.23.1.rt21.186.el9_1.src.rpm x86_64: kernel-rt-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-core-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-core-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-devel-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-modules-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debuginfo-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-devel-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-modules-5.14.0-162.23.1.rt21.186.el9_1.x86_64.rpm kernel-rt-modules-extra-5.14.0-162.23.1.rt21.186.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-2023-0386 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 2023 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBZDWLdtzjgjWX9erEAQhQPg/9G/AIpXINeyGSAqnVYPhtHnjY5jM4OqaJ XwqshRH3c2Ktn7i+wCClvPJTq+r/sq1KbFAZfUYtet5gdLDVgD3V1BkcFWwDt1xv veCUC8avl66mXTVAF4A9DbSipF1kPpXKecEIPRAQtM+m0kSjQ4MvWxAfAwSzZMEW Xa6E1EHKpUk3hN8IqcpHSjqgeR1OewddVyoiYQnaVeTGwEn9m6RCb+QayzoRVg64 xAOocNoD2W+pjp9ZWQ29zIt0cMpUQUpyFn2Z9xxHv1aPAXZmtHpfaCZF5TgyFaXG jOGppen/tncpUx5KMx3+GQEsOUxVeTYgPKMlHFBSLZhZHXzSqir33Fiy0/o8lzSF NeuN18QB6nO0B1lUbQ4YnqOKFRvtQy8aL/EZ6kycnPu9QLnKZ7pxPvCiXdpes9JJ yjpE96oedV4SHvw2XU2xPnOPF87So6B8O6D5Jb0xjM/8nfarU4UWIouzLbuefh6Q clhYKiVi+Fdcj11fKko+ZoozKRhRM2bf49SNmzcxWw7ZMAt57p+cn4HPoOjpeY0k lri9o4APgUCXrffnX4hosMOaqfcJ8AVj4fBl3+YZoLppKtt6RSErMJngjM2x/f0y w0V2tzO0zT2NO9FLJ5l0bfZb2NYuaqNFQtx7BFAhjmQVYLLMXgaMBlPZ4G5DafsK ns8d6FTeAdc= =a9EA - -----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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