ZDI-26-283: 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.
Other sources
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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-5056.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-26-283?
The severity of ZDI-26-283 is critical due to its potential for remote code execution.
How do I fix ZDI-26-283?
To fix ZDI-26-283, update GStreamer to the latest version provided by the vendor.
What causes the ZDI-26-283 vulnerability?
ZDI-26-283 is caused by a stack-based buffer overflow in the GStreamer qtdemux component.
Who is affected by the ZDI-26-283 vulnerability?
Any installations of GStreamer that utilize the qtdemux component are affected by ZDI-26-283.
Can ZDI-26-283 be exploited remotely?
Yes, ZDI-26-283 can be exploited remotely when the vulnerable GStreamer component is used.