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Debian: CVE-2023-2235: linux -- security update

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Debian: CVE-2023-2235: linux -- security update

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
05/01/2023
Created
07/31/2024
Added
07/30/2024
Modified
01/30/2025

Description

A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation. The perf_group_detach function did not check the event's siblings' attach_state before calling add_event_to_groups(), but remove_on_exec made it possible to call list_del_event() on before detaching from their group, making it possible to use a dangling pointer causing a use-after-free vulnerability. We recommend upgrading past commit fd0815f632c24878e325821943edccc7fde947a2.

Solution(s)

  • debian-upgrade-linux

References

  • https://attackerkb.com/topics/cve-2023-2235
  • CVE - 2023-2235
  • 查看数 696
  • 已创建
  • 最后回复

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