CVE-2026-5056: GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability
GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the parsing of UncompressedFrameConfigBox structures. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29392.
Other sources
Integer overflows and out-of-bounds access in MOV/MP4 demuxer
— Debian
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/gst-plugins-good1.0to a version that resolves this vulnerability.Fixed in 1.28.3-1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-5056?
The severity of CVE-2026-5056 is high, with a score of 7.8 on the CVSS scale.
How can I fix CVE-2026-5056?
To fix CVE-2026-5056, update GStreamer to the latest version that patched the vulnerability.
What impact does CVE-2026-5056 have on affected systems?
CVE-2026-5056 allows remote attackers to execute arbitrary code on systems using vulnerable versions of GStreamer.
Which software is affected by CVE-2026-5056?
CVE-2026-5056 affects GStreamer, specifically the gst-plugins-good1.0 package.
What kind of vulnerability is CVE-2026-5056 classified as?
CVE-2026-5056 is classified as a stack-based buffer overflow vulnerability.