It was discovered that GIFLIB incorrectly handled certain GIF files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2016-3977)
It was discovered that GIFLIB incorrectly handled certain GIF files. An attacker could possibly use this issue to cause a denial of service. (CVE-2018-11490, CVE-2019-15133)