The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_4928.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-2024:4928-03
Product:            Red Hat Enterprise Linux
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:4928
Issue date:         2024-07-31
Revision:           03
CVE Names:          CVE-2021-47459
====================================================================

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):

* kernel: block: null pointer dereference in ioctl.c when length and logical block size are misaligned (CVE-2023-52458)

* kernel: ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found() (CVE-2024-26773)

* kernel: bpf: Fix racing between bpf_timer_cancel_and_free and bpf_timer_cancel (CVE-2024-26737)

* kernel: dm: call the resume method on internal suspend (CVE-2024-26880)

* kernel: net/ipv6: avoid possible UAF in ip6_route_mpath_notify() (CVE-2024-26852)

* kernel: Squashfs: check the inode number is not the invalid value of zero (CVE-2024-26982)

* kernel: nfp: flower: handle acti_netdevs allocation failure (CVE-2024-27046)

* kernel: octeontx2-af: Use separate handlers for interrupts (CVE-2024-27030)

* kernel: icmp: prevent possible NULL dereferences from icmp_build_probe() (CVE-2024-35857)

* kernel: mlxbf_gige: call request_irq() after NAPI initialized (CVE-2024-35907)

* kernel: mlxbf_gige: stop interface during shutdown (CVE-2024-35885)

* kernel: scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup() (CVE-2023-52809)

* kernel: can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv (CVE-2021-47459)

* kernel: scsi: lpfc: Release hbalock before calling lpfc_worker_wake_up() (CVE-2024-36924)

* kernel: scsi: lpfc: Move NPIV's transport unregistration to after resource clean up (CVE-2024-36952)

* kernel: net: amd-xgbe: Fix skb data length underflow (CVE-2022-48743)

* kernel: epoll: be better about file lifetimes (CVE-2024-38580)

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-2021-47459

References:

https://access.redhat.com/security/updates/classification/#moderate
https://bugzilla.redhat.com/show_bug.cgi?id=2265794
https://bugzilla.redhat.com/show_bug.cgi?id=2273236
https://bugzilla.redhat.com/show_bug.cgi?id=2273274
https://bugzilla.redhat.com/show_bug.cgi?id=2275690
https://bugzilla.redhat.com/show_bug.cgi?id=2275761
https://bugzilla.redhat.com/show_bug.cgi?id=2278337
https://bugzilla.redhat.com/show_bug.cgi?id=2278435
https://bugzilla.redhat.com/show_bug.cgi?id=2278473
https://bugzilla.redhat.com/show_bug.cgi?id=2281247
https://bugzilla.redhat.com/show_bug.cgi?id=2281647
https://bugzilla.redhat.com/show_bug.cgi?id=2281700
https://bugzilla.redhat.com/show_bug.cgi?id=2282669
https://bugzilla.redhat.com/show_bug.cgi?id=2282898
https://bugzilla.redhat.com/show_bug.cgi?id=2284506
https://bugzilla.redhat.com/show_bug.cgi?id=2284598
https://bugzilla.redhat.com/show_bug.cgi?id=2293316
https://bugzilla.redhat.com/show_bug.cgi?id=2293412