CVE-2024-36964
fs/9p: only translate RWX permissions for plain 9P2000
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Description
In the Linux kernel, the following vulnerability has been resolved: fs/9p: only translate RWX permissions for plain 9P2000 Garbage in plain 9P2000's perm bits is allowed through, which causes it to be able to set (among others) the suid bit. This was presumably not the intent since the unix extended bits are handled explicitly and conditionally on .u.
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/157d468e34fdd3cb1ddc07c2be32fb3b02826b02
- https://git.kernel.org/stable/c/5a605930e19f451294bd838754f7d66c976a8a2c
- https://git.kernel.org/stable/c/ad4f65328661392de74e3608bb736fedf3b67e32
- https://git.kernel.org/stable/c/ca9b5c81f0c918c63d73d962ed8a8e231f840bc8
- https://git.kernel.org/stable/c/cd25e15e57e68a6b18dc9323047fe9c68b99290b
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
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