{"id":"UBUNTU-CVE-2022-1923","details":"DOS / potential heap overwrite in mkv demuxing using bzip decompression. Integer overflow in matroskademux element in bzip decompression function which causes a segfault, or could cause a heap overwrite, depending on libc and OS. Depending on the libc used, and the underlying OS capabilities, it could be just a segfault or a heap overwrite. If the libc uses mmap for large chunks, and the OS supports mmap, then it is just a segfault (because the realloc before the integer overflow will use mremap to reduce the size of the chunk, and it will start to write to unmapped memory). However, if using a libc implementation that does not use mmap, or if the OS does not support mmap while using libc, then this could result in a heap overwrite.","modified":"2026-04-22T15:18:53.323423Z","published":"2022-07-19T20:15:00Z","related":["USN-5555-1"],"upstream":["CVE-2022-1923"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-1923"},{"type":"REPORT","url":"https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1225"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5555-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2022-1923"}],"affected":[{"package":{"name":"gst-plugins-good1.0","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/gst-plugins-good1.0@1.8.3-1ubuntu0.5+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.3-1ubuntu0.5+esm1"}]}],"versions":["1.6.0-1ubuntu1","1.6.1-1ubuntu1","1.6.2-1ubuntu1","1.7.1-1ubuntu1","1.7.2-1ubuntu1","1.7.90-1ubuntu1","1.7.91-1ubuntu1","1.8.0-1ubuntu1","1.8.1-1ubuntu0.1","1.8.2-1ubuntu0.1","1.8.2-1ubuntu0.2","1.8.2-1ubuntu0.3","1.8.3-1ubuntu0.3","1.8.3-1ubuntu0.4","1.8.3-1ubuntu0.5"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.3-1ubuntu0.5+esm1","binary_name":"gstreamer1.0-plugins-good"},{"binary_version":"1.8.3-1ubuntu0.5+esm1","binary_name":"gstreamer1.0-pulseaudio"},{"binary_version":"1.8.3-1ubuntu0.5+esm1","binary_name":"libgstreamer-plugins-good1.0-0"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-1923.json"}},{"package":{"name":"gst-plugins-good1.0","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/gst-plugins-good1.0@1.14.5-0ubuntu1~18.04.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.5-0ubuntu1~18.04.3"}]}],"versions":["1.12.3-1ubuntu1","1.12.4-1ubuntu1","1.13.1-1ubuntu1","1.13.91-1ubuntu1","1.14.0-1ubuntu1","1.14.1-1ubuntu1~ubuntu18.04.1","1.14.4-1ubuntu1~ubuntu18.04.1","1.14.5-0ubuntu1~18.04.1","1.14.5-0ubuntu1~18.04.2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.14.5-0ubuntu1~18.04.3","binary_name":"gstreamer1.0-gtk3"},{"binary_version":"1.14.5-0ubuntu1~18.04.3","binary_name":"gstreamer1.0-plugins-good"},{"binary_version":"1.14.5-0ubuntu1~18.04.3","binary_name":"gstreamer1.0-pulseaudio"},{"binary_version":"1.14.5-0ubuntu1~18.04.3","binary_name":"gstreamer1.0-qt5"},{"binary_version":"1.14.5-0ubuntu1~18.04.3","binary_name":"libgstreamer-plugins-good1.0-0"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-1923.json"}},{"package":{"name":"gst-plugins-good1.0","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/gst-plugins-good1.0@1.16.3-0ubuntu1.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.3-0ubuntu1.1"}]}],"versions":["1.16.1-1ubuntu1","1.16.2-1ubuntu1","1.16.2-1ubuntu2","1.16.2-1ubuntu2.1","1.16.3-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.16.3-0ubuntu1.1","binary_name":"gstreamer1.0-gtk3"},{"binary_version":"1.16.3-0ubuntu1.1","binary_name":"gstreamer1.0-plugins-good"},{"binary_version":"1.16.3-0ubuntu1.1","binary_name":"gstreamer1.0-pulseaudio"},{"binary_version":"1.16.3-0ubuntu1.1","binary_name":"gstreamer1.0-qt5"},{"binary_version":"1.16.3-0ubuntu1.1","binary_name":"libgstreamer-plugins-good1.0-0"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-1923.json"}},{"package":{"name":"gst-plugins-good1.0","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/gst-plugins-good1.0@1.20.3-0ubuntu1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.3-0ubuntu1"}]}],"versions":["1.18.5-1ubuntu2","1.18.5-1ubuntu3","1.20.0-2ubuntu1","1.20.1-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.20.3-0ubuntu1","binary_name":"gstreamer1.0-gtk3"},{"binary_version":"1.20.3-0ubuntu1","binary_name":"gstreamer1.0-plugins-good"},{"binary_version":"1.20.3-0ubuntu1","binary_name":"gstreamer1.0-pulseaudio"},{"binary_version":"1.20.3-0ubuntu1","binary_name":"gstreamer1.0-qt5"},{"binary_version":"1.20.3-0ubuntu1","binary_name":"libgstreamer-plugins-good1.0-0"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-1923.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}