{"id":"UBUNTU-CVE-2021-25786","details":"An issue was discovered in QPDF version 10.0.4, allows remote attackers to execute arbitrary code via crafted .pdf file to Pl_ASCII85Decoder::write parameter in libqpdf.","modified":"2026-04-22T14:38:46.344438Z","published":"2023-08-11T14:15:00Z","related":["USN-5026-1","USN-5026-2"],"upstream":["CVE-2021-25786"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-25786"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5026-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5026-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-25786"}],"affected":[{"package":{"name":"qpdf","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/qpdf@8.0.2-3~16.04.1+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.2-3~16.04.1+esm1"}]}],"versions":["5.1.3-2","5.1.3-3","5.2.0-1","5.2.0-2","6.0.0-2","8.0.2-3~16.04.1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libqpdf21","binary_version":"8.0.2-3~16.04.1+esm1"},{"binary_version":"8.0.2-3~16.04.1+esm1","binary_name":"qpdf"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-25786.json"}},{"package":{"name":"qpdf","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/qpdf@8.0.2-3ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.2-3ubuntu0.1"}]}],"versions":["7.0.0-1","7.1.0-1","7.1.1-1","8.0.0-1","8.0.1-1","8.0.2-1","8.0.2-3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libqpdf21","binary_version":"8.0.2-3ubuntu0.1"},{"binary_name":"qpdf","binary_version":"8.0.2-3ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-25786.json"}},{"package":{"name":"qpdf","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/qpdf@9.1.1-1ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.1.1-1ubuntu0.1"}]}],"versions":["8.4.2-1","9.0.2-1","9.1.0-1","9.1.1-1","9.1.1-1build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libqpdf26","binary_version":"9.1.1-1ubuntu0.1"},{"binary_version":"9.1.1-1ubuntu0.1","binary_name":"qpdf"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-25786.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"},{"type":"Ubuntu","score":"medium"}]}