CVE-2024-36964

fs/9p: only translate RWX permissions for plain 9P2000

EPSS 0.2%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

03 Jun 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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 products

Linux · Linux

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 https://git.kernel.org/stable/c/df1962a199783ecd66734d563caf0fedecf08f96 https://git.kernel.org/stable/c/e55c601af3b1223a84f9f27f9cdbd2af5e203bf3 https://git.kernel.org/stable/c/e90bc596a74bb905e0a45bf346038c3f9d1e868d https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html