The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_3810.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:           Moderate: kernel security and bug fix update
Advisory ID:        RHSA-2024:3810-03
Product:            Red Hat Enterprise Linux
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:3810
Issue date:         2024-06-12
Revision:           03
CVE Names:          CVE-2021-47013
====================================================================

Summary: 

An update for kernel is now available for Red Hat Enterprise Linux 8.8 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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: use-after-free in drivers/media/rc/ene_ir.c due to race condition (CVE-2023-1118)

* kernel: Spectre v2 SMT mitigations problem (CVE-2023-1998)

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

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

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

* kernel: mlxsw: spectrum_acl_tcam: Fix stack corruption (CVE-2024-26586)

* kernel: net:emac/emac-mac: Fix a use after free in emac_mac_tx_buf_send (CVE-2021-47013)

* kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier (CVE-2024-26602)

* kernel: net: bridge: data races indata-races in br_handle_frame_finish() (CVE-2023-52578)

* CVE-2024-25743 hw: amd: Instruction raise #VC exception at exit (AMD-SN-3008,CVE-2024-25742,CVE-2024-25743)

* kernel: netfilter: nf_tables: disallow anonymous set with timeout flag (CVE-2024-26642)

Bug Fix(es):

* md raid5 deadlock during sync check (JIRA:RHEL-27235)

* NULL pointer dereference occurs in x2apic_dead_cpu() due to missing backport from upstream commit 7a22e03b0c02 (JIRA:RHEL-32733)

* [RHEL8.8][ltp] case vma05 failed on x86_64 (JIRA:RHEL-33448)

* XFS: thaw operation hungs if caches are dropped while FS is frozen  (JIRA:RHEL-34523)

* Temporary values in FIPS integrity test should be zeroized (JIRA:RHEL-36693)

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-2021-47013

References:

https://access.redhat.com/security/updates/classification/#moderate
https://bugzilla.redhat.com/show_bug.cgi?id=2174400
https://bugzilla.redhat.com/show_bug.cgi?id=2187257
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=2265645
https://bugzilla.redhat.com/show_bug.cgi?id=2266841
https://bugzilla.redhat.com/show_bug.cgi?id=2267695
https://bugzilla.redhat.com/show_bug.cgi?id=2267758
https://bugzilla.redhat.com/show_bug.cgi?id=2270836
https://bugzilla.redhat.com/show_bug.cgi?id=2270881
https://issues.redhat.com/browse/RHEL-27235