-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2022:7338-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:7338 Issue date: 2022-11-02 CVE Names: CVE-2022-2588 CVE-2022-23816 CVE-2022-23825 CVE-2022-26373 CVE-2022-29900 CVE-2022-29901 ==================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 7. 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 for Real Time (v. 7) - noarch, x86_64 Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, 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): * A use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588) * RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-23816, CVE-2022-29900) * Branch Type Confusion (non-retbleed) (CVE-2022-23825) * Intel: Post-barrier Return Stack Buffer Predictions (CVE-2022-26373) * Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-29901) 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): * Update to the latest RHEL7.9.z18 source tree (BZ#2117337) 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/): 2090226 - CVE-2022-23816 CVE-2022-29900 hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions 2103148 - CVE-2022-29901 hw: cpu: Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions 2103153 - CVE-2022-23825 hw: cpu: AMD: Branch Type Confusion (non-retbleed) 2114849 - CVE-2022-2588 kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation 2115065 - CVE-2022-26373 hw: cpu: Intel: Post-barrier Return Stack Buffer Predictions 6. Package List: Red Hat Enterprise Linux for Real Time for NFV (v. 7): Source: kernel-rt-3.10.0-1160.80.1.rt56.1225.el7.src.rpm noarch: kernel-rt-doc-3.10.0-1160.80.1.rt56.1225.el7.noarch.rpm x86_64: kernel-rt-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-debug-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-debug-kvm-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-devel-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-kvm-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-trace-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-trace-kvm-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm Red Hat Enterprise Linux for Real Time (v. 7): Source: kernel-rt-3.10.0-1160.80.1.rt56.1225.el7.src.rpm noarch: kernel-rt-doc-3.10.0-1160.80.1.rt56.1225.el7.noarch.rpm x86_64: kernel-rt-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-debug-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-devel-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-trace-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-1160.80.1.rt56.1225.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-1160.80.1.rt56.1225.el7.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-2022-2588 https://access.redhat.com/security/cve/CVE-2022-23816 https://access.redhat.com/security/cve/CVE-2022-23825 https://access.redhat.com/security/cve/CVE-2022-26373 https://access.redhat.com/security/cve/CVE-2022-29900 https://access.redhat.com/security/cve/CVE-2022-29901 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/solutions/6971358 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 iQIVAwUBY2K9NtzjgjWX9erEAQjkRRAAm/2K718txKtGuCBa6NclLP2TpOKlk8dw R3eORyTgVZTrl6Qm6RQSA50kcqMFn6/6hzUto5NRvuSgw4H7I2hg/CS+TQlPdFi4 0WcZiZ0vbu7csrsAtAKpmWOpu1O1FzNdqSF5MA7s7zZ0oht9ZnszT+exzcjHbgpO qVMRhgaKmbdlKkKi/32gZP7IwKIZS+CkhqpHhFy7V736FtNyWFT0VNCHdKCklkdP K6gAClFQuMv8npxovTURJfhLjqv6ymcRVrl6KQT3Qlu+iHiy0j18CA3ewW0TdAkO IzDOEh+W9gfTR4bgrrUl5+A5oZkkazYqm6joGJBI7uZHv9v3yoOLzP4HAduSVFBC AgBo9yhGnP6xXzunT5nYVs0EpnCpHFaJhlxsavm/pKjS+c35enuawyN2l24kACnE Kdv3KZ6XQtBTdaR9e/UTqCCiSXznEcJJ0xE4VfKFNtngXrWGftAIcTBMDQpfePP7 rfBo/C9IT8rKqt1T62M0Xu+NfjoeziKrpPoXi86rn90bw93Mdl0rrmAhTISeL92K M5m5DIyPD9HQuX4/3NKWXJDEKgPao+JFouEAlm86YMfFzjxzBE8GXTnvp2xw5vf1 BJkFxtUe74jR8YqJYO7KxyOS9K9Z7BeqEcvSRwNdBAY6TgcDa5lB347Kcgl1WvDf SmJAIcuqXRk=WLhk -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce