The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_1248.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 security update
Advisory ID:        RHSA-2024:1248-03
Product:            Red Hat Enterprise Linux
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:1248
Issue date:         2024-03-12
Revision:           03
CVE Names:          CVE-2023-4244
====================================================================

Summary: 

An update for kernel is now available for Red Hat Enterprise Linux 9.

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 packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: inactive elements in nft_pipapo_walk (CVE-2023-6817)

* kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation (CVE-2024-0193)

* kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (CVE-2024-0646)

* kernel: Use-after-free in nft_verdict_dump due to a race between set GC and transaction (CVE-2023-4244)

* kernel: A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller than its child's sibling_list (CVE-2023-5717)

* kernel: NULL pointer dereference in nvmet_tcp_build_iovec (CVE-2023-6356)

* kernel: NULL pointer dereference in nvmet_tcp_execute_request (CVE-2023-6535)

* kernel: NULL pointer dereference in __nvmet_req_complete (CVE-2023-6536)

* kernel: Out-Of-Bounds Read vulnerability in smbCalcSize (CVE-2023-6606)

* kernel: OOB Access in smb2_dump_detail (CVE-2023-6610)

* kernel: use-after-free in amdgpu_cs_wait_all_fences in drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c (CVE-2023-51042)

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-2023-4244

References:

https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2235306
https://bugzilla.redhat.com/show_bug.cgi?id=2246945
https://bugzilla.redhat.com/show_bug.cgi?id=2253611
https://bugzilla.redhat.com/show_bug.cgi?id=2253614
https://bugzilla.redhat.com/show_bug.cgi?id=2253908
https://bugzilla.redhat.com/show_bug.cgi?id=2254052
https://bugzilla.redhat.com/show_bug.cgi?id=2254053
https://bugzilla.redhat.com/show_bug.cgi?id=2254054
https://bugzilla.redhat.com/show_bug.cgi?id=2255139
https://bugzilla.redhat.com/show_bug.cgi?id=2255653
https://bugzilla.redhat.com/show_bug.cgi?id=2259866