VulnerabilityModified
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.
MEDIUM 5.5EPSS 0.52%
Does this matter?
Lower severity and a low EPSS score (0.52%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 0.52% probability · 42th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- pkgconf/pkgconf
- Source
- cve@mitre.org
References
- https://gitea.treehouse.systems/ariadne/pkgconf/commit/628b2b2bafa5d3a2017193ddf375093e70666059Patch, Third Party Advisory
- https://github.com/pkgconf/pkgconf/tagsRelease Notes, Third Party Advisory
- https://nullprogram.com/blog/2023/01/18/Exploit, Third Party Advisory
- https://gitea.treehouse.systems/ariadne/pkgconf/commit/628b2b2bafa5d3a2017193ddf375093e70666059Patch, Third Party Advisory
- https://github.com/pkgconf/pkgconf/tagsRelease Notes, Third Party Advisory
- https://nullprogram.com/blog/2023/01/18/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.