CVE-2024-42312
sysctl: always initialize i_uid/i_gid
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Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/1deae34db9f4f8e0e03f891be2e2e15c15c8ac05
- https://git.kernel.org/stable/c/34a86adea1f2b3c3f9d864c8cce09dca644601ab
- https://git.kernel.org/stable/c/98ca62ba9e2be5863c7d069f84f7166b45a5b2f4
- https://git.kernel.org/stable/c/b2591c89a6e2858796111138c38fcb6851aa1955
- https://git.kernel.org/stable/c/c7e2f43d182f5dde473389dbb39f16c9f0d64536
References (9)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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