{"id":"UBUNTU-CVE-2017-16938","details":"A global buffer overflow in OptiPNG 0.7.6 allows remote attackers to cause a denial-of-service attack or other unspecified impact with a maliciously crafted GIF format file, related to an uncontrolled loop in the LZWReadByte function of the gifread.c file.","modified":"2025-10-24T04:46:36Z","published":"2017-11-24T07:29:00Z","upstream":["CVE-2017-16938"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-16938"},{"type":"REPORT","url":"https://sourceforge.net/p/optipng/bugs/69/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-16938"}],"affected":[{"package":{"name":"optipng","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/optipng@0.7.6-1ubuntu0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.5-1","0.7.6-1","0.7.6-1ubuntu0.16.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.7.6-1ubuntu0.16.04.1","binary_name":"optipng"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-16938.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]}