UBUNTU-CVE-2026-119727
Dashboard / Vulnerabilities / UBUNTU-CVE-2026-119727
Summary:
Details: A flaw was found in GStreamer's gst-plugins-bad H.265 video parser. When parsing a specially crafted H.265 bitstream containing a Screen Content Coding (SCC) extension with certain palette predictor initializer settings, an integer underflow in the upper-bound computation allows the parser to accept an out-of-range value for the number of palette predictor entries. This causes the parser to write beyond the end of a fixed-size array, resulting in memory corruption and an application crash. Successful exploitation requires an attacker to provide a malformed H.265 media file to a vulnerable application, and is limited to a denial-of-service impact.
References: https://ubuntu.com/security/CVE-2026-119727, https://www.cve.org/CVERecord?id=CVE-2026-119727, https://gstreamer.freedesktop.org/security/sa-2026-0012.html, https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/10902, https://access.redhat.com/security/cve/CVE-2026-119727, https://bugzilla.redhat.com/show_bug.cgi?id=2564118, https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/10902.patch
Affected packages
Package
Name: gst-plugins-bad1.0
Purl: pkg:deb/ubuntu/gst-plugins-bad1.0?arch=source&distro=esm-infra-legacy%2Ftrusty
Affected ranges
Type: ECOSYSTEM
Events:
