{"id":"UBUNTU-CVE-2025-23016","details":"FastCGI 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.","modified":"2026-04-22T15:38:47.451584Z","published":"2025-01-10T12:15:00Z","related":["USN-7486-1"],"upstream":["CVE-2025-23016"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-23016"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-23016"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7486-1"}],"affected":[{"package":{"name":"libfcgi","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libfcgi@2.4.0-8.3?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.0-8.3"],"ecosystem_specific":{"binaries":[{"binary_name":"libfcgi0ldbl","binary_version":"2.4.0-8.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json"}},{"package":{"name":"libfcgi","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libfcgi@2.4.0-10?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.0-8.4","2.4.0-10"],"ecosystem_specific":{"binaries":[{"binary_name":"libfcgi-bin","binary_version":"2.4.0-10"},{"binary_name":"libfcgi0ldbl","binary_version":"2.4.0-10"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json"}},{"package":{"name":"libfcgi","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libfcgi@2.4.0-10build1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.0-10","2.4.0-10build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libfcgi-bin","binary_version":"2.4.0-10build1"},{"binary_name":"libfcgi0ldbl","binary_version":"2.4.0-10build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json"}},{"package":{"name":"libfcgi","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libfcgi@2.4.2-2ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.2-2ubuntu0.1"}]}],"versions":["2.4.2-2build1","2.4.2-2build2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libfcgi-bin","binary_version":"2.4.2-2ubuntu0.1"},{"binary_name":"libfcgi0ldbl","binary_version":"2.4.2-2ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json"}},{"package":{"name":"libfcgi","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libfcgi@2.4.2-2.1ubuntu0.24.04.1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.2-2.1ubuntu0.24.04.1"}]}],"versions":["2.4.2-2build2","2.4.2-2.1","2.4.2-2.1build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libfcgi-bin","binary_version":"2.4.2-2.1ubuntu0.24.04.1"},{"binary_name":"libfcgi0t64","binary_version":"2.4.2-2.1ubuntu0.24.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json"}},{"package":{"name":"libfcgi","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libfcgi@2.4.5-0.1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.5-0.1"}]}],"versions":["2.4.2-2.1build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libfcgi-bin","binary_version":"2.4.5-0.1"},{"binary_name":"libfcgi0t64","binary_version":"2.4.5-0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}