Out-of-bounds Read in GNU Tar
CVE-2022-48303
GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. The issue occurs in from_header in list.c via a V7 archive in which mtime has approximately 11 whitespace characters.
Vulnerability class: Buffer Overflow
EPSS: 0.015 (72.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Gnu Tar
- Fedoraproject Fedora — versions 37, 38
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Vendor Advisory)
- cve@mitre.org (Patch, Vendor Advisory)
- cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-48303?
- CVE-2022-48303 is a medium-severity vulnerability in GNU Tar, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2023-01-30.
- How severe is CVE-2022-48303?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2022-48303 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.