{"id":"UBUNTU-CVE-2020-27770","details":"Due to a missing check for 0 value of `replace_extent`, it is possible for offset `p` to overflow in SubstituteString(), causing potential impact to application availability. This could be triggered by a crafted input file that is processed by ImageMagick. This flaw affects ImageMagick versions prior to 7.0.8-68.","modified":"2026-02-04T03:29:22.487169Z","published":"2020-12-04T15:15:00Z","related":["USN-4988-1","USN-5335-1","USN-7068-1"],"upstream":["CVE-2020-27770"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-27770"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4988-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5335-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-27770"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7068-1"}],"affected":[{"package":{"name":"imagemagick","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/imagemagick@8:6.8.9.9-7ubuntu5.16+esm2?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8:6.8.9.9-7ubuntu5.16+esm2"}]}],"versions":["8:6.8.9.9-5ubuntu2","8:6.8.9.9-6","8:6.8.9.9-6build1","8:6.8.9.9-7","8:6.8.9.9-7ubuntu1","8:6.8.9.9-7ubuntu2","8:6.8.9.9-7ubuntu3","8:6.8.9.9-7ubuntu4","8:6.8.9.9-7ubuntu5","8:6.8.9.9-7ubuntu5.1","8:6.8.9.9-7ubuntu5.2","8:6.8.9.9-7ubuntu5.3","8:6.8.9.9-7ubuntu5.4","8:6.8.9.9-7ubuntu5.5","8:6.8.9.9-7ubuntu5.6","8:6.8.9.9-7ubuntu5.7","8:6.8.9.9-7ubuntu5.8","8:6.8.9.9-7ubuntu5.9","8:6.8.9.9-7ubuntu5.11","8:6.8.9.9-7ubuntu5.12","8:6.8.9.9-7ubuntu5.13","8:6.8.9.9-7ubuntu5.14","8:6.8.9.9-7ubuntu5.15","8:6.8.9.9-7ubuntu5.16","8:6.8.9.9-7ubuntu5.16+esm1"],"ecosystem_specific":{"availability":"Available 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