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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.1969 kernel security update 5 April 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2023-0266 Original Bulletin: https://access.redhat.com/errata/RHSA-2023:1588 Comment: CVSS (Max): 7.8 CVE-2023-0266 (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: kernel security update Advisory ID: RHSA-2023:1588-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:1588 Issue date: 2023-04-04 CVE Names: CVE-2023-0266 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 8.1 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 BaseOS E4S (v. 8.1) - aarch64, noarch, ppc64le, s390x, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (CVE-2023-0266) 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 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 2163379 - CVE-2023-0266 ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF 6. Package List: Red Hat Enterprise Linux BaseOS E4S (v. 8.1): Source: kernel-4.18.0-147.81.1.el8_1.src.rpm aarch64: bpftool-4.18.0-147.81.1.el8_1.aarch64.rpm bpftool-debuginfo-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-core-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-cross-headers-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-debug-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-debug-core-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-debug-debuginfo-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-debug-devel-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-debug-modules-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-debug-modules-extra-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-debuginfo-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-devel-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-headers-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-modules-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-modules-extra-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-tools-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-tools-debuginfo-4.18.0-147.81.1.el8_1.aarch64.rpm kernel-tools-libs-4.18.0-147.81.1.el8_1.aarch64.rpm perf-4.18.0-147.81.1.el8_1.aarch64.rpm perf-debuginfo-4.18.0-147.81.1.el8_1.aarch64.rpm python3-perf-4.18.0-147.81.1.el8_1.aarch64.rpm python3-perf-debuginfo-4.18.0-147.81.1.el8_1.aarch64.rpm noarch: kernel-abi-whitelists-4.18.0-147.81.1.el8_1.noarch.rpm kernel-doc-4.18.0-147.81.1.el8_1.noarch.rpm ppc64le: bpftool-4.18.0-147.81.1.el8_1.ppc64le.rpm bpftool-debuginfo-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-core-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-cross-headers-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-debug-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-debug-core-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-debug-debuginfo-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-debug-devel-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-debug-modules-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-debug-modules-extra-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-debuginfo-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-devel-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-headers-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-modules-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-modules-extra-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-tools-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-tools-debuginfo-4.18.0-147.81.1.el8_1.ppc64le.rpm kernel-tools-libs-4.18.0-147.81.1.el8_1.ppc64le.rpm perf-4.18.0-147.81.1.el8_1.ppc64le.rpm perf-debuginfo-4.18.0-147.81.1.el8_1.ppc64le.rpm python3-perf-4.18.0-147.81.1.el8_1.ppc64le.rpm python3-perf-debuginfo-4.18.0-147.81.1.el8_1.ppc64le.rpm s390x: bpftool-4.18.0-147.81.1.el8_1.s390x.rpm bpftool-debuginfo-4.18.0-147.81.1.el8_1.s390x.rpm kernel-4.18.0-147.81.1.el8_1.s390x.rpm kernel-core-4.18.0-147.81.1.el8_1.s390x.rpm kernel-cross-headers-4.18.0-147.81.1.el8_1.s390x.rpm kernel-debug-4.18.0-147.81.1.el8_1.s390x.rpm kernel-debug-core-4.18.0-147.81.1.el8_1.s390x.rpm kernel-debug-debuginfo-4.18.0-147.81.1.el8_1.s390x.rpm kernel-debug-devel-4.18.0-147.81.1.el8_1.s390x.rpm kernel-debug-modules-4.18.0-147.81.1.el8_1.s390x.rpm kernel-debug-modules-extra-4.18.0-147.81.1.el8_1.s390x.rpm kernel-debuginfo-4.18.0-147.81.1.el8_1.s390x.rpm kernel-debuginfo-common-s390x-4.18.0-147.81.1.el8_1.s390x.rpm kernel-devel-4.18.0-147.81.1.el8_1.s390x.rpm kernel-headers-4.18.0-147.81.1.el8_1.s390x.rpm kernel-modules-4.18.0-147.81.1.el8_1.s390x.rpm kernel-modules-extra-4.18.0-147.81.1.el8_1.s390x.rpm kernel-tools-4.18.0-147.81.1.el8_1.s390x.rpm kernel-tools-debuginfo-4.18.0-147.81.1.el8_1.s390x.rpm kernel-zfcpdump-4.18.0-147.81.1.el8_1.s390x.rpm kernel-zfcpdump-core-4.18.0-147.81.1.el8_1.s390x.rpm kernel-zfcpdump-debuginfo-4.18.0-147.81.1.el8_1.s390x.rpm kernel-zfcpdump-devel-4.18.0-147.81.1.el8_1.s390x.rpm kernel-zfcpdump-modules-4.18.0-147.81.1.el8_1.s390x.rpm kernel-zfcpdump-modules-extra-4.18.0-147.81.1.el8_1.s390x.rpm perf-4.18.0-147.81.1.el8_1.s390x.rpm perf-debuginfo-4.18.0-147.81.1.el8_1.s390x.rpm python3-perf-4.18.0-147.81.1.el8_1.s390x.rpm python3-perf-debuginfo-4.18.0-147.81.1.el8_1.s390x.rpm x86_64: bpftool-4.18.0-147.81.1.el8_1.x86_64.rpm bpftool-debuginfo-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-core-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-cross-headers-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-debug-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-debug-core-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-debug-debuginfo-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-debug-devel-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-debug-modules-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-debug-modules-extra-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-debuginfo-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-devel-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-headers-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-modules-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-modules-extra-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-tools-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-tools-debuginfo-4.18.0-147.81.1.el8_1.x86_64.rpm kernel-tools-libs-4.18.0-147.81.1.el8_1.x86_64.rpm perf-4.18.0-147.81.1.el8_1.x86_64.rpm perf-debuginfo-4.18.0-147.81.1.el8_1.x86_64.rpm python3-perf-4.18.0-147.81.1.el8_1.x86_64.rpm python3-perf-debuginfo-4.18.0-147.81.1.el8_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-2023-0266 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 iQIVAwUBZCvqp9zjgjWX9erEAQiaXhAAg1lFw+m+yEwVdLTbaGOkzg0Wla/fIFT9 KiLKyv/l8wHRKUHFkcyNXD35Ux2Ob+BFkEwR2CddOf+6ZJQz9cM9IroCQ4fgiNrp wlRWQYtKfq37HTUXP5Heiwqe7yw1eiZdZ/UuqoERReyreMdUjahKuP4w/UxG1+Pw /xyNL10Oz52Ws/qGyLAv4UB55b4h94FwNDhskvVkw9/hCk0qMJrcECDZn+YLoCg3 VaN/MGl8uSRMf3DKnyw/Z/2v9AZd0X4AqKmzbNWUFyQ86bwaVSC37B/G5uQQZTSS XlnjwUgOLjg+SoxN7UrYcC3It+7UAx7Gbg5gezXXzCWjRXhn/Tqc9Y/+opMJC21X 2HkK2RvVftM06R56RF2/RMTmIf6nbXO0d0unegB0RFk+wd1Q68/8osnYfsG/DFaK k3TMxoUX1IlWVdrxHvp8BswFc9wStM6bdGSXm47STQne1orr9iDXJMuq9KsD9ZBT 9nvp/1gj/aLKNaCyH8LxgAKASR+KmtBQUAvV9RF0slNRkiDOGl2WwoZGYGA1uVp6 azPCBxaE5NUiiWgAnVcYCQimQh7Joqcz0szw7BDHuaF2RziR+vo0DqDR7xNameTH dCfVA4WEMEE/jeb6XumN2uH+SktTrjaM1owIRj6kxp7U0WinajB3VVVahd31R8mi vcBom9i111Y= =wiwd - -----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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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBZCzL5MkNZI30y1K9AQhKtBAAnauRVVfwXMGigbPgM7zC5n/XRUzlRlWm fAhjUYYkzugsctTmWRIO/gVYRqKkOji6qX3F9xnMY6bKEexExyksmFzl07NcPMV9 vUHbJqQnLdH+x9kljogqm2K2NuqDAR6bDaParl1v1nc8r2YixuouQjaiAk54YRMJ UpTX7ccule5QX5tt/QjhufWHuzqRE6XSxQAFJaaQ4FjQujrUjfKknWdsKv4KzQCv UhRODvKvb5hvRbYWQ/XoS773Zv1DL9gcjEkCNdJw/ZYlNkKVUx3X5UYbUhLLSJmG QOawGENFjyeEmfl0e8hqF245ZSW+Lov2yaAip9QCrt17+WWtHc4qG0IEW7A5wySb 5DtUQCytV+FJkbYDw5a47MvLVzrnirYFTTBMvY2tQcwsnrAvED2IMzCEud2ohhrt HmFnd7DbAHejjAuGEG8edefxdX/drp9c/PK7G18/VF7bcpr1RqMeLWXU7nCHgYaz e9nanP81P1bLvp+4EIA1b4XMEiFkWrA3ofGBrFSV5X126N3y5zqAr9+coYaCV7Eq gWStQwCRVZwqeKvLIxDNjdRMwIfiwI8kggT5ZtLFvRtGy8hG0JVTjnYzHbziuCfv Fbtlut+NpDP8cB2p6ltzLc1+604bAO0WtnzPSS3ymIZVZs+9UhmagaDbvhK5qFw9 slZXJc7Uwl4= =f9+g -----END PGP SIGNATURE-----