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CVE-2025-40907
5.3 MEDIUM
- CVSS version: 3.1
- Attack vector (AV): NETWORK
- Attack complexity (AC): LOW
- Privileges required (PR): NONE
- User interaction (UI): NONE
- Scope (S): UNCHANGED
- Confidentiality impact (C): NONE
- Integrity impact (I): NONE
- Availability impact (A): LOW
FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library
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.
References
- http://www.openwall.com/lists/oss-security/2025/04/23/4 mailing-list
- https://github.com/FastCGI-Archives/fcgi2/issues/67 issue-tracking
- https://github.com/FastCGI-Archives/fcgi2/releases/tag/2.4.5 patch
- https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi… technical-description
- https://github.com/perl-catalyst/FCGI/issues/14 issue-tracking
- https://patch-diff.githubusercontent.com/raw/FastCGI-Archives/fcgi2/pull/74.pat… patch
- http://www.openwall.com/lists/oss-security/2025/04/23/4 mailing-list
- https://github.com/FastCGI-Archives/fcgi2/issues/67 issue-tracking
- https://github.com/FastCGI-Archives/fcgi2/releases/tag/2.4.5 patch
- https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi… technical-description
- https://github.com/perl-catalyst/FCGI/issues/14 issue-tracking
- https://patch-diff.githubusercontent.com/raw/FastCGI-Archives/fcgi2/pull/74.pat… patch
Affected products
FCGI
- =<0.82
Matching in nixpkgs
pkgs.perlPackages.FCGI
Fast CGI module
-
nixos-unstable -
- nixpkgs-unstable 0.82
pkgs.perl538Packages.FCGI
Fast CGI module
-
nixos-unstable -
- nixpkgs-unstable 0.82
pkgs.perl540Packages.FCGI
Fast CGI module
-
nixos-unstable -
- nixpkgs-unstable 0.82
pkgs.perlPackages.FCGIClient
Client library for fastcgi protocol
-
nixos-unstable -
- nixpkgs-unstable 0.09
pkgs.perl538Packages.FCGIClient
Client library for fastcgi protocol
-
nixos-unstable -
- nixpkgs-unstable 0.09
pkgs.perl540Packages.FCGIClient
Client library for fastcgi protocol
-
nixos-unstable -
- nixpkgs-unstable 0.09
pkgs.perlPackages.FCGIProcManager
Perl-based FastCGI process manager
-
nixos-unstable -
- nixpkgs-unstable 0.28
pkgs.perl538Packages.FCGIProcManager
Perl-based FastCGI process manager
-
nixos-unstable -
- nixpkgs-unstable 0.28
pkgs.perl540Packages.FCGIProcManager
Perl-based FastCGI process manager
-
nixos-unstable -
- nixpkgs-unstable 0.28