{"id":"UBUNTU-CVE-2019-6977","details":"gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka LibGD) 2.2.5, as used in the imagecolormatch function in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1, has a heap-based buffer overflow. This can be exploited by an attacker who is able to trigger imagecolormatch calls with crafted image data.","modified":"2026-02-04T04:05:52.040565Z","published":"2019-01-26T00:00:00Z","related":["USN-3900-1"],"upstream":["CVE-2019-6977"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-6977"},{"type":"REPORT","url":"http://php.net/ChangeLog-5.php"},{"type":"REPORT","url":"http://php.net/ChangeLog-7.php"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3900-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-6977"}],"affected":[{"package":{"name":"libgd2","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libgd2@2.1.0-3ubuntu0.11?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-3ubuntu0.11"}]}],"versions":["2.1.0-2","2.1.0-3","2.1.0-3ubuntu0.1","2.1.0-3ubuntu0.2","2.1.0-3ubuntu0.3","2.1.0-3ubuntu0.5","2.1.0-3ubuntu0.6","2.1.0-3ubuntu0.7","2.1.0-3ubuntu0.8","2.1.0-3ubuntu0.10"],"ecosystem_specific":{"binaries":[{"binary_version":"2.1.0-3ubuntu0.11","binary_name":"libgd-dev"},{"binary_version":"2.1.0-3ubuntu0.11","binary_name":"libgd-tools"},{"binary_version":"2.1.0-3ubuntu0.11","binary_name":"libgd2-noxpm-dev"},{"binary_version":"2.1.0-3ubuntu0.11","binary_name":"libgd2-xpm-dev"},{"binary_version":"2.1.0-3ubuntu0.11","binary_name":"libgd3"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-6977.json"}},{"package":{"name":"libgd2","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libgd2@2.1.1-4ubuntu0.16.04.11?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.1-4ubuntu0.16.04.11"}]}],"versions":["2.1.1-4build1","2.1.1-4build2","2.1.1-4ubuntu0.16.04.1","2.1.1-4ubuntu0.16.04.2","2.1.1-4ubuntu0.16.04.3","2.1.1-4ubuntu0.16.04.5","2.1.1-4ubuntu0.16.04.6","2.1.1-4ubuntu0.16.04.7","2.1.1-4ubuntu0.16.04.8","2.1.1-4ubuntu0.16.04.10"],"ecosystem_specific":{"binaries":[{"binary_version":"2.1.1-4ubuntu0.16.04.11","binary_name":"libgd-dev"},{"binary_version":"2.1.1-4ubuntu0.16.04.11","binary_name":"libgd-tools"},{"binary_version":"2.1.1-4ubuntu0.16.04.11","binary_name":"libgd3"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-6977.json"}},{"package":{"name":"libgd2","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libgd2@2.2.5-4ubuntu0.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.5-4ubuntu0.3"}]}],"versions":["2.2.5-3","2.2.5-4","2.2.5-4ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.2.5-4ubuntu0.3","binary_name":"libgd-dev"},{"binary_version":"2.2.5-4ubuntu0.3","binary_name":"libgd-tools"},{"binary_version":"2.2.5-4ubuntu0.3","binary_name":"libgd3"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-6977.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}