{"id":"UBUNTU-CVE-2026-17544","details":"Attacker-provided inputs to bccomp() could lead to an out-of-bounds write with stack and heap corruption in PHP versions from 8.4.* before 8.4.24 and from 8.5.* before 8.5.9.","modified":"2026-09-10T16:30:20.433369565Z","published":"2026-07-30T12:17:00Z","related":["USN-8743-1"],"upstream":["CVE-2026-17544"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-17544"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-17544"},{"type":"REPORT","url":"https://github.com/php/php-src/security/advisories/GHSA-x692-q9x7-8c3f"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8743-1"}],"affected":[{"package":{"name":"php8.5","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/php8.5?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.5.4-0ubuntu1.3"}]}],"versions":["8.5.2-0ubuntu1","8.5.4-0ubuntu1","8.5.4-0ubuntu1.1","8.5.4-0ubuntu1.2"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache2-mod-php8.5","binary_version":"8.5.4-0ubuntu1.3"},{"binary_name":"libphp8.5-embed","binary_version":"8.5.4-0ubuntu1.3"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5-bcmath"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5-bz2"},{"binary_name":"php8.5-cgi","binary_version":"8.5.4-0ubuntu1.3"},{"binary_name":"php8.5-cli","binary_version":"8.5.4-0ubuntu1.3"},{"binary_name":"php8.5-common","binary_version":"8.5.4-0ubuntu1.3"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5-curl"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5-dba"},{"binary_name":"php8.5-enchant","binary_version":"8.5.4-0ubuntu1.3"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5-fpm"},{"binary_name":"php8.5-gd","binary_version":"8.5.4-0ubuntu1.3"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5-gmp"},{"binary_name":"php8.5-interbase","binary_version":"8.5.4-0ubuntu1.3"},{"binary_name":"php8.5-intl","binary_version":"8.5.4-0ubuntu1.3"},{"binary_name":"php8.5-ldap","binary_version":"8.5.4-0ubuntu1.3"},{"binary_name":"php8.5-litespeed","binary_version":"8.5.4-0ubuntu1.3"},{"binary_name":"php8.5-mbstring","binary_version":"8.5.4-0ubuntu1.3"},{"binary_name":"php8.5-mysql","binary_version":"8.5.4-0ubuntu1.3"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5-odbc"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5-pgsql"},{"binary_name":"php8.5-phpdbg","binary_version":"8.5.4-0ubuntu1.3"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5-readline"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5-snmp"},{"binary_name":"php8.5-soap","binary_version":"8.5.4-0ubuntu1.3"},{"binary_name":"php8.5-sqlite3","binary_version":"8.5.4-0ubuntu1.3"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5-sybase"},{"binary_name":"php8.5-tidy","binary_version":"8.5.4-0ubuntu1.3"},{"binary_name":"php8.5-xml","binary_version":"8.5.4-0ubuntu1.3"},{"binary_name":"php8.5-xsl","binary_version":"8.5.4-0ubuntu1.3"},{"binary_version":"8.5.4-0ubuntu1.3","binary_name":"php8.5-zip"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-17544.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}