The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_5673.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




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Red Hat Security Advisory

Synopsis:           Important: kernel-rt security update
Advisory ID:        RHSA-2024:5673-03
Product:            Red Hat Enterprise Linux
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:5673
Issue date:         2024-08-26
Revision:           03
CVE Names:          CVE-2023-52463
====================================================================

Summary: 

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 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: efivarfs: force RO when remounting if SetVariable is not supported (CVE-2023-52463)

* kernel: igc: avoid returning frame twice in XDP_REDIRECT (CVE-2024-26853)

* kernel: mm/hugetlb: fix missing hugetlb_lock for resv uncharge (CVE-2024-36000)

* kernel: bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself (CVE-2023-52735)

* kernel: net: fix out-of-bounds access in ops_init (CVE-2024-36883)

* kernel: net/mlx5e: Fix netif state handling (CVE-2024-38608)

* kernel: net/sched: act_api: fix possible infinite loop in tcf_idr_check_alloc() (CVE-2024-40995)

* kernel: virtio-net: tap: mlx5_core short frame denial of service (CVE-2024-41090)

* kernel: virtio-net: tun: mlx5_core short frame denial of service (CVE-2024-41091)

* kernel: NFSv4: Fix memory leak in nfs4_set_security_label (CVE-2024-41076)

* kernel: ice: Don't process extts if PTP is disabled (CVE-2024-42107)

Bug Fix(es):

* kernel-rt: update RT source tree to the latest RHEL-9.2 ad hoc schedule build (JIRA:RHEL-54222)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer the CVE page(s) listed in the References section.


Solution:

https://access.redhat.com/articles/11258



CVEs:

CVE-2023-52463

References:

https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2265797
https://bugzilla.redhat.com/show_bug.cgi?id=2275748
https://bugzilla.redhat.com/show_bug.cgi?id=2281968
https://bugzilla.redhat.com/show_bug.cgi?id=2282618
https://bugzilla.redhat.com/show_bug.cgi?id=2284271
https://bugzilla.redhat.com/show_bug.cgi?id=2293356
https://bugzilla.redhat.com/show_bug.cgi?id=2297579
https://bugzilla.redhat.com/show_bug.cgi?id=2299240
https://bugzilla.redhat.com/show_bug.cgi?id=2299336
https://bugzilla.redhat.com/show_bug.cgi?id=2300453
https://bugzilla.redhat.com/show_bug.cgi?id=2301766