Red Hat Security Advisory: kpatch-patch security update

Fixed packages 9

Vulnerabilities 2

• High 7.8
  CVE-2023-4921

  Use-after-free in Linux kernel's net/sched: sch_qfq component

  A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue()…

  Linux kernel linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Sep 12, 2023
• High 7.0
  CVE-2024-0646

  Kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination

  An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privile…

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 7 Linux Debian Ubuntu Azure Linux
  Jan 17, 2024

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2245514
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2253908
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_1368.json
• report
  https://access.redhat.com/security/cve/CVE-2023-4921
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-4921
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-4921
• article
  https://github.com/torvalds/linux/commit/8fc134fee27f2263988ae38920bc03da416b03d8
• report
  https://access.redhat.com/security/cve/CVE-2024-0646
• advisory
  https://www.cve.org/CVERecord?id=CVE-2024-0646
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2024-0646
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5a595000e267