Vulnerability · Published Apr 4, 2024 · Assigned by GitHub_M

CVE-2024-30254Directory traversal allowing overwriting arbitrary files

Medium 5.8

In plain English

A medium-severity path traversal in mesonlsp from JCWasmx86. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).

Severity (CVSS 3.1)5.8Medium

Exploit odds (30 days)0.2%top 91.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

MesonLSP is an unofficial, unendorsed language server for meson written in C++. A vulnerability in versions prior to 4.1.4 allows overwriting arbitrary files if the attacker can make the victim either run the language server within a specific crafted project or `mesonlsp --full`. Version 4.1.4 contains a patch for this issue. As a workaround, avoid running `mesonlsp --full` and set the language server option `others.neverDownloadAutomatically` to `true`.

Affected products (as reported)

Vendor	Product	Versions
JCWasmx86	mesonlsp	< 4.1.4

Weakness: CWE-22 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L

References

https://github.com/JCWasmx86/mesonlsp/security/advisories/GHSA-48c5-35fh-846h x_refsource_CONFIRM
https://github.com/JCWasmx86/mesonlsp/commit/594b6334061371911cd59389124ab8af30ce0a3a x_refsource_MISC