CVE-2024-36964: fs/9p: only translate RWX permissions for plain 9P2000
Vulnerability summary
CVE-2024-36964 is a high (CVSS 8.8) vulnerability in debian debian_linux. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 43.1% of scored vulnerabilities.
Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 165 · Related 162Showing 100 of 165.
Timeline
- 03-06-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.50%
Chance of exploitation in the next 30 days
Percentile
43%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.50% on 05-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu128 products
- linux< 3.13.0-204.255 | < 4.4.0-266.300 | < 4.15.0-235.247 | < 5.4.0-192.212 | < 5.15.0-118.128 | < 6.8.0-40.40
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 4.4.0-1141.147 | < 4.4.0-1179.194 | < 4.15.0-1178.191 | < 5.4.0-1130.140 | < 5.15.0-1067.73 | < 6.8.0-1013.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.94-1 | < 6.8.11-1
- debian_linuxEOL10.0
Linux2 products
- linux≥ 45089142b1497dab2327d60f6c71c40766fc3ea4, < e90bc596a74bb905e0a45bf346038c3f9d1e868d | ≥ 45089142b1497dab2327d60f6c71c40766fc3ea4, < df1962a199783ecd66734d563caf0fedecf08f96 | ≥ 45089142b1497dab2327d60f6c71c40766fc3ea4, < 5a605930e19f451294bd838754f7d66c976a8a2c | ≥ 45089142b1497dab2327d60f6c71c40766fc3ea4, < ad4f65328661392de74e3608bb736fedf3b67e32 | ≥ 45089142b1497dab2327d60f6c71c40766fc3ea4, < ca9b5c81f0c918c63d73d962ed8a8e231f840bc8 | ≥ 45089142b1497dab2327d60f6c71c40766fc3ea4, < e55c601af3b1223a84f9f27f9cdbd2af5e203bf3 | ≥ 45089142b1497dab2327d60f6c71c40766fc3ea4, < 157d468e34fdd3cb1ddc07c2be32fb3b02826b02 | ≥ 45089142b1497dab2327d60f6c71c40766fc3ea4, < cd25e15e57e68a6b18dc9323047fe9c68b99290b | 29a3e8657d2a2640384166e3fe29a086d235fc33 | ≥ 3.0.5, < 3.1 | 3.1
- linux_kernel< 4.19.314 | ≥ 4.20, < 5.4.276 | ≥ 5.5, < 5.10.217 | ≥ 5.11, < 5.15.159 | ≥ 5.16, < 6.1.91 | ≥ 6.2, < 6.6.31 | ≥ 6.7, < 6.8.10 | 6.9:rc1 | 6.9:rc2 | 6.9:rc3 | 6.9:rc4
3 vendors · 132 products
References
38 links- lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlX TransferredMailing ListThird Party Advisory