| Package | libfcgi-perl |
|---|---|
| Version | 0.77-1+deb8u2 (jessie), 0.78-2+deb9u1 (stretch), 0.78-2+deb10u1 (buster) |
| Related CVEs | CVE-2025-40907 |
libfcgi-perl is a helper module for FastCGI, a binary protocol for interfacing interactive programs with a web server. It was found the included FastCGI library is affected by CVE-2025-23016, causing an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket which may lead to a denial of service or other unspecified impact.
For Debian 10 buster, these problems have been fixed in version 0.78-2+deb10u1.
For Debian 8 jessie, these problems have been fixed in version 0.77-1+deb8u2.
For Debian 9 stretch, these problems have been fixed in version 0.78-2+deb9u1.
We recommend that you upgrade your libfcgi-perl packages.
Further information about Extended LTS security advisories can be found in the dedicated section of our website.