CVE-2025-23016

NameCVE-2025-23016
DescriptionFastCGI fcgi2 (aka fcgi) 2.x through 2.4.4 has an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-4329-1
Debian Bugs1092774

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libfcgi (PTS)bookworm2.4.2-2+deb12u1fixed
forky, sid, trixie2.4.5-0.1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libfcgisourcebullseye2.4.2-2+deb11u1DLA-4329-1
libfcgisourcebookworm2.4.2-2+deb12u1
libfcgisource(unstable)2.4.5-0.11092774

Notes

https://github.com/FastCGI-Archives/fcgi2/issues/67
https://github.com/FastCGI-Archives/fcgi2/pull/74
Fixed by: https://github.com/FastCGI-Archives/fcgi2/commit/b0eabcaf4d4f371514891a52115c746815c2ff15 (2.4.5)
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