Buffer overflow in Pkgconf
CVE-2023-24056
In pkgconf through 1.9.3, variable duplication can cause unbounded string expansion due to incorrect checks in libpkgconf/tuple.c:pkgconf_tuple_parse. For example, a .pc file containing a few hundred bytes can expand to one billion bytes.
Vulnerability class: Buffer Overflow
EPSS: 0.005 (40.9th 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
- Pkgconf
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2023-24056?
- CVE-2023-24056 is a medium-severity vulnerability in Pkgconf, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2023-01-22.
- How severe is CVE-2023-24056?
- Medium severity. CVSS v3 base score is 5.5 out of 10.