CVE-2026-35355 | BDVDB-2026-328486 Detail
Uutilscoreutils
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.
Impact#
CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
Weaknesses#
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
References#
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.