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Debian: CVE-2023-3776: linux -- security update

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Debian: CVE-2023-3776: linux -- security update

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
07/21/2023
Created
08/21/2023
Added
08/21/2023
Modified
01/30/2025

Description

A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability. We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.

Solution(s)

  • debian-upgrade-linux

References

  • https://attackerkb.com/topics/cve-2023-3776
  • CVE - 2023-3776
  • DSA-5480-1
  • 查看数 700
  • 已创建
  • 最后回复

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