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FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library.
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. This occurs in ReadParams in fcgiapp.c.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade perl-FCGI | Jul 4, 2025 | May 16, 2025 |
| Amazon Linux Ami 2 | — | Upgrade perl-FCGIUpgrade perl-FCGI-debuginfo | Jun 13, 2025 | May 16, 2025 |
| Debian | — | Upgrade libfcgi-perl | May 20, 2025 | May 16, 2025 |
| Oracle_linux | — | Upgrade perl-FCGI | Jun 10, 2025 | May 16, 2025 |
| Redhat_linux | — | Upgrade perl-FCGIUpgrade perl-FCGI-debuginfoUpgrade perl-FCGI-debugsource | Jun 10, 2025 | May 16, 2025 |
| Rocky_linux | — | Upgrade perl-FCGI-debugsourceUpgrade perl-FCGIUpgrade perl-FCGI-debuginfo | Jul 31, 2025 | Jul 29, 2025 |
| Ubuntu | — | Upgrade libfcgi-perl (Ubuntu Pro)Upgrade libfcgi-perl | May 26, 2025 | May 16, 2025 |
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