ZDI-26-168: GStreamer RIFF Palette Integer 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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-2921.
AI Analysis
Technical Summary
CVE-2026-2921 is an integer overflow vulnerability in GStreamer's processing of palette data in AVI files. The vulnerability arises due to insufficient validation of user input, which can cause an integer overflow prior to a memory write operation. Exploiting this flaw enables remote attackers to execute arbitrary code with the privileges of the affected process. The vulnerability has a CVSS score of 7.8 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) and affects GStreamer installations that handle AVI files. An official patch has been released by the GStreamer project to remediate this issue.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code on systems running vulnerable versions of GStreamer. This can lead to full compromise of the affected process, including confidentiality, integrity, and availability impacts. The vulnerability specifically targets the handling of palette data in AVI files, making any application using GStreamer for such media processing potentially vulnerable.
Mitigation Recommendations
An official patch has been released by the GStreamer project to fix this vulnerability. Users and administrators should apply the update available at https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/e3a99c35266fc92dd6a18ac5fde028d0cda559e6 as soon as possible to mitigate the risk. No additional mitigation steps are indicated by the vendor advisory.
ZDI-26-168: GStreamer RIFF Palette Integer Overflow Remote Code Execution Vulnerability
Description
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-2026-2921.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-2921 is an integer overflow vulnerability in GStreamer's processing of palette data in AVI files. The vulnerability arises due to insufficient validation of user input, which can cause an integer overflow prior to a memory write operation. Exploiting this flaw enables remote attackers to execute arbitrary code with the privileges of the affected process. The vulnerability has a CVSS score of 7.8 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) and affects GStreamer installations that handle AVI files. An official patch has been released by the GStreamer project to remediate this issue.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code on systems running vulnerable versions of GStreamer. This can lead to full compromise of the affected process, including confidentiality, integrity, and availability impacts. The vulnerability specifically targets the handling of palette data in AVI files, making any application using GStreamer for such media processing potentially vulnerable.
Mitigation Recommendations
An official patch has been released by the GStreamer project to fix this vulnerability. Users and administrators should apply the update available at https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/e3a99c35266fc92dd6a18ac5fde028d0cda559e6 as soon as possible to mitigate the risk. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-168/","fetched":true,"fetchedAt":"2026-05-26T20:01:58.146Z","wordCount":203}
Threat ID: 6a15fc94e29bf47b5055e519
Added to database: 5/26/2026, 8:03:32 PM
Last enriched: 5/26/2026, 8:26:17 PM
Last updated: 5/27/2026, 4:55:43 AM
Views: 3
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