{"id":"BIT-php-2025-14177","summary":"Information Leak of Memory in getimagesize","details":"In PHP versions:8.1.* before 8.1.34, 8.2.* before 8.2.30, 8.3.* before 8.3.29, 8.4.* before 8.4.16, 8.5.* before 8.5.1, the getimagesize() function may leak uninitialized heap memory into the APPn segments (e.g., APP1) when reading images in multi-chunk mode (such as via php://filter). This occurs due to a bug in php_read_stream_all_chunks() that overwrites the buffer without advancing the pointer, leaving tail bytes uninitialized. This may lead to information disclosure of sensitive heap data and affect the confidentiality of the target server.","aliases":["BIT-libphp-2025-14177","BIT-php-min-2025-14177","CVE-2025-14177","GHSA-3237-qqm7-mfv7"],"modified":"2026-01-08T12:25:59.983206Z","published":"2026-01-08T11:48:30.537Z","database_specific":{"cpes":["cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://github.com/php/php-src/security/advisories/GHSA-3237-qqm7-mfv7"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-14177"}],"affected":[{"package":{"name":"php","ecosystem":"Bitnami","purl":"pkg:bitnami/php"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.1.34"},{"introduced":"8.2.0"},{"fixed":"8.2.30"},{"introduced":"8.3.0"},{"fixed":"8.3.29"},{"introduced":"8.4.0"},{"fixed":"8.4.16"},{"introduced":"8.5.0"},{"fixed":"8.5.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/php/BIT-php-2025-14177.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.7.3"}