CVE-2024-42312

low-risk
Published 2024-08-17

In the Linux kernel, the following vulnerability has been resolved: sysctl: always initialize i_uid/i_gid Always initialize i_uid/i_gid inside the sysfs core so set_ownership() can safely skip setting them. Commit 5ec27ec735ba ("fs/proc/proc_sysctl.c: fix the default values of i_uid/i_gid on /proc/sys inodes.") added defaults for i_uid/i_gid when set_ownership() was not implemented. It also missed adjusting net_ctl_set_ownership() to use the same default values in case the computation of a better value failed.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (8)

Patch https://git.kernel.org/stable/c/1deae34db9f4f8e0e03f891be2e2e15c15c8ac05
Patch https://git.kernel.org/stable/c/34a86adea1f2b3c3f9d864c8cce09dca644601ab
Patch https://git.kernel.org/stable/c/98ca62ba9e2be5863c7d069f84f7166b45a5b2f4
Patch https://git.kernel.org/stable/c/b2591c89a6e2858796111138c38fcb6851aa1955
Patch https://git.kernel.org/stable/c/c7e2f43d182f5dde473389dbb39f16c9f0d64536
Patch https://git.kernel.org/stable/c/ffde3af4b29bf97d62d82e1d45275587e10a991a
https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal