SB2025122320 - Path traversal in GNU Tar
Published: December 23, 2025
Security Bulletin ID
SB2025122320
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Path traversal (CVE-ID: CVE-2025-45582)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L/E:U/U:Clear
The vulnerability allows a local user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences. A local user can trick the victim into opening a specially crafted HTTP request and read arbitrary files on the system.
Remediation
Install update from vendor's website.
References
- https://github.com/i900008/vulndb/blob/main/Gnu_tar_vuln.md
- https://lists.gnu.org/archive/html/bug-tar/2025-08/msg00012.html
- https://www.gnu.org/software/tar/
- https://www.gnu.org/software/tar/manual/html_node/Integrity.html
- https://www.gnu.org/software/tar/manual/html_node/Security-rules-of-thumb.html
- http://www.openwall.com/lists/oss-security/2025/11/01/6