CVE-2018-1000221

CRITICAL 9.8CVE-2018-1000221 · Published 20/08/2018 · updated 17/06/2026

In short

CVE-2018-1000221 is a CRITICAL (CVSS 9.8) vulnerability affecting pkgconf (pkgconf).
Chance of exploitation in the next 30 days (EPSS): 1.4%, higher than 71.7% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
pkgconf pkgconf	`≥ 1.5.0, ≤ 1.5.2`	No fix yet

Description

pkgconf version 1.5.0 to 1.5.2 contains a Buffer Overflow vulnerability in dequote() that can result in dequote() function returns 1-byte allocation if initial length is 0, leading to buffer overflow. This attack appear to be exploitable via specially crafted .pc file. This vulnerability appears to have been fixed in 1.5.3.

References

git.dereferenced.org/pkgconf/pkgconf/pulls/3 · Third Party Advisory

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