{"id":"UBUNTU-CVE-2025-14177","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.","modified":"2026-04-22T18:59:38.770899Z","published":"2025-12-27T20:15:00Z","related":["USN-7953-1"],"upstream":["CVE-2025-14177"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-14177"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-14177"},{"type":"REPORT","url":"https://github.com/php/php-src/security/advisories/GHSA-3237-qqm7-mfv7"},{"type":"REPORT","url":"https://github.com/php/php-src/commit/c5f28c7cf0a052f48e47877c7aa5c5bcc54f1cfc"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7953-1"}],"affected":[{"package":{"name":"php8.3","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/php8.3@8.3.6-0ubuntu0.24.04.6?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.3.6-0ubuntu0.24.04.6"}]}],"versions":["8.3.0-1","8.3.0-1ubuntu1","8.3.4-1","8.3.4-1build1","8.3.6-0maysync1","8.3.6-0ubuntu0.24.04.1","8.3.6-0ubuntu0.24.04.2","8.3.6-0ubuntu0.24.04.3","8.3.6-0ubuntu0.24.04.4","8.3.6-0ubuntu0.24.04.5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libapache2-mod-php8.3","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"libphp8.3-embed","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-bcmath","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-bz2","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_version":"8.3.6-0ubuntu0.24.04.6","binary_name":"php8.3-cgi"},{"binary_name":"php8.3-cli","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-common","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_version":"8.3.6-0ubuntu0.24.04.6","binary_name":"php8.3-curl"},{"binary_name":"php8.3-dba","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-enchant","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_version":"8.3.6-0ubuntu0.24.04.6","binary_name":"php8.3-fpm"},{"binary_name":"php8.3-gd","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-gmp","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-imap","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_version":"8.3.6-0ubuntu0.24.04.6","binary_name":"php8.3-interbase"},{"binary_version":"8.3.6-0ubuntu0.24.04.6","binary_name":"php8.3-intl"},{"binary_name":"php8.3-ldap","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-mbstring","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-mysql","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-odbc","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-opcache","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-pgsql","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-phpdbg","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-pspell","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_version":"8.3.6-0ubuntu0.24.04.6","binary_name":"php8.3-readline"},{"binary_name":"php8.3-snmp","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-soap","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-sqlite3","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-sybase","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-tidy","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-xml","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-xsl","binary_version":"8.3.6-0ubuntu0.24.04.6"},{"binary_name":"php8.3-zip","binary_version":"8.3.6-0ubuntu0.24.04.6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-14177.json"}},{"package":{"name":"php8.4","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/php8.4@8.4.11-1ubuntu1.1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.4.11-1ubuntu1.1"}]}],"versions":["8.4.5-1ubuntu1","8.4.8-1ubuntu1","8.4.11-1ubuntu1"],"ecosystem_specific":{"availability":"No 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