{"id":"UBUNTU-CVE-2019-11471","details":"libheif 1.4.0 has a use-after-free in heif::HeifContext::Image::set_alpha_channel in heif_context.h because heif_context.cc mishandles references to non-existing alpha images.","modified":"2026-04-22T13:27:19.946147Z","published":"2019-04-23T14:29:00Z","related":["USN-6847-1"],"upstream":["CVE-2019-11471"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11471"},{"type":"REPORT","url":"https://github.com/strukturag/libheif/commit/995a4283d8ed2d0d2c1ceb1a577b993df2f0e014"},{"type":"REPORT","url":"https://github.com/strukturag/libheif/issues/123"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-11471"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6847-1"}],"affected":[{"package":{"name":"libheif","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libheif@1.1.0-2ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.0-2ubuntu0.1~esm1"}]}],"versions":["1.1.0-2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"libheif-examples","binary_version":"1.1.0-2ubuntu0.1~esm1"},{"binary_name":"libheif1","binary_version":"1.1.0-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-11471.json"}}],"schema_version":"1.7.5","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"}]}