{"id":"UBUNTU-CVE-2025-40907","details":"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.","modified":"2026-02-04T02:18:21.007148Z","published":"2025-05-16T13:15:00Z","related":["USN-7527-1"],"upstream":["CVE-2025-40907"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-40907"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-40907"},{"type":"REPORT","url":"https://lists.security.metacpan.org/cve-announce/msg/29651740/"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2025/04/23/4"},{"type":"REPORT","url":"https://github.com/FastCGI-Archives/fcgi2/issues/67"},{"type":"REPORT","url":"https://github.com/FastCGI-Archives/fcgi2/releases/tag/2.4.5"},{"type":"REPORT","url":"https://github.com/perl-catalyst/FCGI/issues/14"},{"type":"REPORT","url":"https://patch-diff.githubusercontent.com/raw/FastCGI-Archives/fcgi2/pull/74.patch"},{"type":"REPORT","url":"https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7527-1"}],"affected":[{"package":{"name":"libfcgi-perl","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libfcgi-perl@0.77-1ubuntu0.1~esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.77-1ubuntu0.1~esm1"}]}],"versions":["0.77-1","0.77-1build1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libfcgi-perl","binary_version":"0.77-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-40907.json"}},{"package":{"name":"libfcgi-perl","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libfcgi-perl@0.78-2ubuntu0.1~esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.78-2ubuntu0.1~esm1"}]}],"versions":["0.78-2build1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libfcgi-perl","binary_version":"0.78-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-40907.json"}},{"package":{"name":"libfcgi-perl","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libfcgi-perl@0.79-1ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.79-1ubuntu0.1"}]}],"versions":["0.78-2build2","0.78-2build3","0.79-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libfcgi-perl","binary_version":"0.79-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-40907.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}]}