CVE-2023-24056
CVE-2023-24056 is a medium-severity vulnerability in Pkgconf with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 1% (40th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Pkgconf
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2023-24056?
- CVE-2023-24056 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2023-24056 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-24056?
- CVE-2023-24056 affects Pkgconf. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-24056?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2023-24056 published?
- CVE-2023-24056 was published on 2023-01-22 and last updated on 2026-06-17.
References
- https://gitea.treehouse.systems/ariadne/pkgconf/commit/628b2b2bafa5d3a2017193ddf375093e70666059
- https://github.com/pkgconf/pkgconf/tags
- https://nullprogram.com/blog/2023/01/18/
Affected products (1)
- cpe:2.3:a:pkgconf:pkgconf:*:*:*:*:*:*:*:*
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