7.8

CVE-2026-2920

GStreamer ASF Demuxer Heap-based Buffer Overflow Remote Code Execution Vulnerability

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. Was ZDI-CAN-28843.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Gstreamer ≫ Gstreamer Version < 1.28.1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.77% 0.511
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
zdi-disclosures@trendmicro.com 7.8 1.8 5.9
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

https://www.zerodayinitiative.com/advisories/ZDI-26-164/
Third Party Advisory
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/37d7991168a223d0810fd1f4493ec6a8b6a510d3
Patch
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:19024
https://access.redhat.com/errata/RHSA-2026:19180
https://access.redhat.com/errata/RHSA-2026:6259
https://access.redhat.com/errata/RHSA-2026:6300
https://access.redhat.com/errata/RHSA-2026:6750
https://access.redhat.com/errata/RHSA-2026:8854
https://access.redhat.com/errata/RHSA-2026:8862
https://access.redhat.com/security/cve/CVE-2026-2920
https://bugzilla.redhat.com/show_bug.cgi?id=2447490
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2920.json