CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

GHSA-v24v-f45g-w7jf: Duplicate Advisory: uutils coreutils has a Time-of-Check to Time-of-Use (TOCTOU) race condition

mediumCVSS 6.3
Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-239g-2685-54x3. This link is maintained to preserve external references. Original Description The install utility in uutils coreutils is vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition during file installation. The implementation unlinks an existing destination file and then recreates it using a path-based operation without the O_EXCL flag. A local attacker can exploit the window between the unlink and the subsequent creation to swap the path with a symbolic link, allowing them to redirect privileged writes to overwrite arbitrary system files.

Details

Source
GitHub Security Advisories (INTL · database · site)
Severity
medium — CVSS 6.3
Published
2026-04-22
Last updated
2026-07-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://github.com/advisories/GHSA-v24v-f45g-w7jf

More from GitHub Security Advisories