The following advisory data is extracted from: https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_0431.json Red Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment. - Packet Storm Staff ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2024:0431-03 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2024:0431 Issue date: 2024-01-25 Revision: 03 CVE Names: CVE-2022-36879 ==================================================================== Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. 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. 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: net/sched: sch_hfsc UAF (CVE-2023-4623) * kernel: use after free in nvmet_tcp_free_crypto in NVMe (CVE-2023-5178) * kernel: IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871) * kernel: xfrm_expand_policies() in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice (CVE-2022-36879) * kernel: null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip (CVE-2022-41858) * kernel: use-after-free caused by invalid pointer hostname in fs/cifs/connect.c (CVE-2023-1195) * kernel: UAF during login when accessing the shost ipaddress (CVE-2023-2162) * kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race (CVE-2023-3567) * kernel: use-after-free in netfilter: nf_tables (CVE-2023-3777) * kernel: SEV-ES local priv escalation (CVE-2023-46813) Bug Fix(es): * kernel-rt: update RT source tree to the latest RHEL-9.0.z Batch 14 (RHEL-17273) 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. Solution: https://access.redhat.com/articles/11258 CVEs: CVE-2022-36879 References: https://access.redhat.com/security/updates/classification/#important https://bugzilla.redhat.com/show_bug.cgi?id=2119855 https://bugzilla.redhat.com/show_bug.cgi?id=2144379 https://bugzilla.redhat.com/show_bug.cgi?id=2154171 https://bugzilla.redhat.com/show_bug.cgi?id=2187773 https://bugzilla.redhat.com/show_bug.cgi?id=2221463 https://bugzilla.redhat.com/show_bug.cgi?id=2237750 https://bugzilla.redhat.com/show_bug.cgi?id=2237757 https://bugzilla.redhat.com/show_bug.cgi?id=2241924 https://bugzilla.redhat.com/show_bug.cgi?id=2244723 https://bugzilla.redhat.com/show_bug.cgi?id=2246944