ZDI-26-164: GStreamer ASF Demuxer Heap-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 processing of stream headers within ASF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-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-2026-2920.
— ZDI
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch ZDI-26-164
Event History
Frequently Asked Questions
What is the severity of ZDI-26-164?
ZDI-26-164 is considered a critical severity vulnerability due to its potential for remote code execution.
How do I fix ZDI-26-164?
To fix ZDI-26-164, users should update GStreamer to the latest version where the vulnerability has been patched.
Who is affected by ZDI-26-164?
ZDI-26-164 affects installations of GStreamer that utilize the ASF demuxer.
What type of vulnerability is ZDI-26-164?
ZDI-26-164 is a heap-based buffer overflow vulnerability.
What are the potential consequences of ZDI-26-164?
Exploitation of ZDI-26-164 can allow attackers to execute arbitrary code on affected systems.