The following advisory data is extracted from:

https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_8617.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 update
Advisory ID:        RHSA-2024:8617-03
Product:            Red Hat Enterprise Linux
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:8617
Issue date:         2024-10-30
Revision:           03
CVE Names:          CVE-2021-47383
====================================================================

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 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):

* hw: cpu: intel: Native Branch History Injection (BHI) (CVE-2024-2201)

* kernel: tcp: add sanity checks to rx zerocopy (CVE-2024-26640)

* kernel: mptcp: fix data re-injection from stale subflow (CVE-2024-26826)

* kernel: af_unix: Fix garbage collector racing against connect() (CVE-2024-26923)

* kernel: mac802154: fix llsec key resources release in mac802154_llsec_key_del (CVE-2024-26961)

* kernel: scsi: core: Fix unremoved procfs host directory regression (CVE-2024-26935)

* kernel: tty: Fix out-of-bound vmalloc access in imageblit (CVE-2021-47383)

* kernel: net/sched: taprio: extend minimum interval restriction to entire cycle too (CVE-2024-36244)

* kernel: xfs: fix log recovery buffer allocation for the legacy h_size fixup (CVE-2024-39472)

* kernel: netfilter: nft_inner: validate mandatory meta and payload (CVE-2024-39504)

* kernel: USB: class: cdc-wdm: Fix CPU lockup caused by excessive log messages (CVE-2024-40904)

* kernel: mptcp: ensure snd_una is properly initialized on connect (CVE-2024-40931)

* kernel: ipv6: prevent possible NULL dereference in rt6_probe() (CVE-2024-40960)

* kernel: ext4: do not create EA inode under buffer lock (CVE-2024-40972)

* kernel: wifi: mt76: mt7921s: fix potential hung tasks during chip recovery (CVE-2024-40977)

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

* kernel: ext4: fix uninitialized ratelimit_state->lock access in __ext4_fill_super() (CVE-2024-40998)

* kernel: netpoll: Fix race condition in netpoll_owner_active (CVE-2024-41005)

* kernel: xfs: don't walk off the end of a directory data block (CVE-2024-41013)

* kernel: xfs: add bounds checking to xlog_recover_process_data (CVE-2024-41014)

* kernel: block: initialize integrity buffer to zero before writing it to media (CVE-2024-43854)

* kernel: netfilter: flowtable: initialise extack before use (CVE-2024-45018)

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-2021-47383

References:

https://access.redhat.com/security/updates/classification/#moderate
https://bugzilla.redhat.com/show_bug.cgi?id=2268118
https://bugzilla.redhat.com/show_bug.cgi?id=2270100
https://bugzilla.redhat.com/show_bug.cgi?id=2275604
https://bugzilla.redhat.com/show_bug.cgi?id=2277171
https://bugzilla.redhat.com/show_bug.cgi?id=2278176
https://bugzilla.redhat.com/show_bug.cgi?id=2278235
https://bugzilla.redhat.com/show_bug.cgi?id=2282357
https://bugzilla.redhat.com/show_bug.cgi?id=2293654
https://bugzilla.redhat.com/show_bug.cgi?id=2296067
https://bugzilla.redhat.com/show_bug.cgi?id=2297476
https://bugzilla.redhat.com/show_bug.cgi?id=2297488
https://bugzilla.redhat.com/show_bug.cgi?id=2297515
https://bugzilla.redhat.com/show_bug.cgi?id=2297544
https://bugzilla.redhat.com/show_bug.cgi?id=2297556
https://bugzilla.redhat.com/show_bug.cgi?id=2297561
https://bugzilla.redhat.com/show_bug.cgi?id=2297579
https://bugzilla.redhat.com/show_bug.cgi?id=2297582
https://bugzilla.redhat.com/show_bug.cgi?id=2297589
https://bugzilla.redhat.com/show_bug.cgi?id=2300296
https://bugzilla.redhat.com/show_bug.cgi?id=2300297
https://bugzilla.redhat.com/show_bug.cgi?id=2311715