{"id":"USN-5026-2","summary":"qpdf vulnerabilities","details":"USN-5026-1 fixed several vulnerabilities in QPDF. This update provides\nthe corresponding update for Ubuntu 16.04 ESM.\nOriginal advisory details:\n\n It was discovered that QPDF incorrectly handled certain malformed PDF\n files. A remote attacker could use this issue to cause QPDF to consume\n resources, resulting in a denial of service. (CVE-2018-18020)\n\n It was discovered that QPDF incorrectly handled certain malformed PDF\n files. A remote attacker could use this issue to cause QPDF to crash,\n resulting in a denial of service, or possibly execute arbitrary code.\n (CVE-2021-36978)\n","modified":"2026-04-22T10:09:46.882295Z","published":"2021-08-02T14:15:25Z","related":["UBUNTU-CVE-2018-18020","UBUNTU-CVE-2021-25786","UBUNTU-CVE-2021-36978"],"upstream":["CVE-2018-18020","CVE-2021-36978","UBUNTU-CVE-2018-18020","UBUNTU-CVE-2021-36978"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5026-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-18020"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-36978"}],"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":{"binaries":[{"binary_name":"libqpdf21","binary_version":"8.0.2-3~16.04.1+esm1"},{"binary_name":"qpdf","binary_version":"8.0.2-3~16.04.1+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5026-2.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2018-18020"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-36978"}],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}}],"schema_version":"1.7.5"}