跳转到帖子

Oracle Linux: CVE-2023-4244: ELSA-2024-1248: kernel security update (IMPORTANT) (Multiple Advisories)

recommended_posts

发布于
  • Members

Oracle Linux: CVE-2023-4244: ELSA-2024-1248:kernel security update (IMPORTANT) (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:H/Au:S/C:C/I:C/A:C)
Published
08/28/2023
Created
12/20/2023
Added
12/14/2023
Modified
01/23/2025

Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability. We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8. A use-after-free flaw was found in the Linux kernel’s nftables sub-component due to a race problem between the set GC and transaction in the Linux Kernel. This flaw allows a local attacker to crash the system due to a missing call to `nft_set_elem_mark_busy`, causing double deactivation of the element and possibly leading to a kernel information leak problem.

Solution(s)

  • oracle-linux-upgrade-kernel
  • oracle-linux-upgrade-kernel-uek

References

  • https://attackerkb.com/topics/cve-2023-4244
  • CVE - 2023-4244
  • ELSA-2024-1248
  • ELSA-2023-13043
  • ELSA-2024-12151
  • ELSA-2024-12153
  • ELSA-2024-12154
  • ELSA-2024-3138
View more
  • 查看数 703
  • 已创建
  • 最后回复

参与讨论

你可立刻发布并稍后注册。 如果你有帐户,立刻登录发布帖子。
注意:你的帖子需要版主批准后才能看到。

游客
回帖…