-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2022:5834-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:5834 Issue date: 2022-08-02 CVE Names: CVE-2022-1012 CVE-2022-32250 ==================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 8. 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. 8) - x86_64 Red Hat Enterprise Linux Real Time for NFV (v. 8) - 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: Small table perturb size in the TCP source port generation algorithm can lead to information leak (CVE-2022-1012) * kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root (CVE-2022-32250) 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): * The latest RHEL 8.6.z2 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2107215) 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/): 2064604 - CVE-2022-1012 kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak 2092427 - CVE-2022-32250 kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root 6. Package List: Red Hat Enterprise Linux Real Time for NFV (v. 8): Source: kernel-rt-4.18.0-372.19.1.rt7.176.el8_6.src.rpm x86_64: kernel-rt-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-core-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-core-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-devel-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-kvm-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-modules-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debuginfo-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-devel-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-kvm-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-modules-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-modules-extra-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm Red Hat Enterprise Linux Real Time (v. 8): Source: kernel-rt-4.18.0-372.19.1.rt7.176.el8_6.src.rpm x86_64: kernel-rt-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-core-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-core-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-devel-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-modules-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debuginfo-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-devel-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-modules-4.18.0-372.19.1.rt7.176.el8_6.x86_64.rpm kernel-rt-modules-extra-4.18.0-372.19.1.rt7.176.el8_6.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-2022-1012 https://access.redhat.com/security/cve/CVE-2022-32250 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 iQIVAwUBYuqtStzjgjWX9erEAQggag/+Op31dOpLfNwWEd0gRBI9RH47GwnWwGVb jCFhbvsCVvp7Zx5sBs6tyR4xJaf0QSAoYRV1YC6pKqntlrYd6YvarhtY1xtTGDcy oRN0KJmNEzuqcsgeZZgNkzIfv4BRzIRj1MFKF0S8n7ehxVllJfXtKSoruwuJwdMQ mOuw5Bc9E69IomtjD/gxrcOr4JvrNuV0IA6MzCUtcH/yyAFHZRnimzmfXgwxiuBS 2apS7eOy4kPZvchNnoLsOaAalPIGaCFYgkw7mf8cpFwAcm086wkyNS0FdlbrlhZT hk/LC0eevqSz/RNGcirOpMLKJCbx+xTQk+TrFJJ2C2vJfbBGoaX5RS0HNClrzu9h YXxymcbAHlt/zXVT+QuGUQ0fp8TBXzRMSF9Yzo/Id2+o69QchnjhjmY2A9B2u5Ln f+disZr3ael9VrPMrim89bX8DuYYXENKL3O9O5HloQzcxb1CkFuji4tuXAUSMvPj JF6RG6RDjKDodGXVfwc6YeY8KQBPSCArPDtSyd8GbegmzHoJSn0BsZub/bPT+S/L 4XACshnEn2mtymLcaw26LsRlbmQthwyPyGCfXsi6v/rMU3SGAv68R7MjYlGXe4uQ gupKB/1/FfYzurpIW2Lgxh0YbyVwVzyCOiJe9QyUm4t5owafyrFghQc7gQgrEU48 r9lWv7g8iNkCXN -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce