CVE-2024-36964
High
fs/9p: only translate RWX permissions for plain 9P2000
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.
Exploit probability
0.5%
Published
June 3, 2024
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
231 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2024-36964
View original source
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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
- https://git.kernel.org/stable/c/df1962a199783ecd66734d563caf0fedecf08f96
- https://git.kernel.org/stable/c/e55c601af3b1223a84f9f27f9cdbd2af5e203bf3
- https://git.kernel.org/stable/c/e90bc596a74bb905e0a45bf346038c3f9d1e868d
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36964.json
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-36964