{"id":"UBUNTU-CVE-2020-21896","details":"A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in source/fitz/svg-device.c in Artifex Software MuPDF 1.16.0 allows remote attackers to cause a denial of service via opening of a crafted PDF file.","modified":"2026-04-22T14:11:34.113406Z","published":"2023-08-22T19:16:00Z","related":["USN-7825-1"],"upstream":["CVE-2020-21896"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-21896"},{"type":"REPORT","url":"https://bugs.ghostscript.com/show_bug.cgi?id=701294"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-21896"},{"type":"REPORT","url":"http://www.ghostscript.com/cgi-bin/findgit.cgi?8719e07834d6a72b6b4131539e49ed1e8e2ff79e"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7825-1"}],"affected":[{"package":{"name":"mupdf","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/mupdf@1.12.0+ds1-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12.0+ds1-1ubuntu0.1~esm1"}]}],"versions":["1.11+ds1-1.1","1.11+ds1-2","1.12.0+ds1-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.12.0+ds1-1ubuntu0.1~esm1","binary_name":"mupdf"},{"binary_name":"mupdf-tools","binary_version":"1.12.0+ds1-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21896.json"}},{"package":{"name":"mupdf","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/mupdf@1.16.1+ds1-1ubuntu1+esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.1+ds1-1ubuntu1+esm1"}]}],"versions":["1.15.0+ds1-1","1.16.1+ds1-1ubuntu1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"mupdf","binary_version":"1.16.1+ds1-1ubuntu1+esm1"},{"binary_name":"mupdf-tools","binary_version":"1.16.1+ds1-1ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21896.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:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}