Time-of-check Time-of-use (TOCTOU) Race Condition in fdupes - CVE-2022-48682

Vulnerability identifier: #VU89841

CSH Severity: Low

CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-48682

CWE-ID: CWE-367

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to delete arbitrary files.

The vulnerability exists due to a race condition. A local user can delete arbitrary files on the system via a symbolic link.

fdupes
Amazon Linux AMI
openEuler
fdupes
fdupes-debugsource
fdupes-debuginfo
fdupes-help

Install updates from vendor's website.

fdupes - update to 2.2.0
fdupes - update to 2.3.0-1
fdupes-debugsource - update to 2.3.0-1
fdupes-debuginfo - update to 2.3.0-1
fdupes-help - update to 2.3.0-1
fdupes - update to 2.3.0-1

• https://github.com/adrianlopezroche/fdupes/blob/4b6bcde1b3eb1cebe87cd30814f7d6cf4ee46e95/fdupes.c
• https://github.com/adrianlopezroche/fdupes/commit/85680897148f1ac33b55418e00334116e419717f
• https://bugzilla.suse.com/show_bug.cgi?id=1200381
• https://github.com/adrianlopezroche/fdupes/compare/v2.1.2...v2.2.0

• Race condition in FDUPES
• openEuler update for fdupes
• openEuler 20.03 LTS SP1 update for fdupes
• openEuler 22.03 LTS SP3 update for fdupes
• Amazon Linux AMI update for fdupes