CVE-2024-0444
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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3Tags
Description
GStreamer AV1 Video Parsing 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 tile list data within AV1-encoded video 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 stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-22873.
Analysis
A stack-based buffer overflow vulnerability exists in GStreamer's AV1 video parsing functionality that allows remote attackers to execute arbitrary code when processing specially crafted AV1-encoded video files. The vulnerability affects all versions of GStreamer prior to the patched release and requires user interaction to exploit, such as opening a malicious video file. With a CVSS score of 8.8 and patches available since the disclosure, this represents a high-severity issue for applications using GStreamer for video processing.
Technical Context
GStreamer is a widely-used open-source multimedia framework that provides libraries and tools for constructing graphs of media-handling components. The vulnerability (CWE-121: Stack-based Buffer Overflow) occurs specifically in the AV1 video codec parsing component when processing tile list data. The affected product is identified as cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:* indicating all versions before the patch. The flaw stems from insufficient validation of user-supplied data length before copying it to a fixed-size stack buffer, a classic boundary error that can lead to memory corruption and code execution.
Affected Products
All versions of GStreamer prior to the patched release are affected by this vulnerability, as indicated by the CPE string cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*. The vulnerability specifically impacts the AV1 video parsing functionality within the GStreamer multimedia framework. Users can find detailed patch information at the official GStreamer GitLab repository (https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/f368d63ecd89e01fd2cf0b1c4def5fc782b2c390) and the Zero Day Initiative advisory (https://www.zerodayinitiative.com/advisories/ZDI-24-567/).
Remediation
Apply the vendor-provided patch immediately by updating to a GStreamer version that includes commit f368d63ecd89e01fd2cf0b1c4def5fc782b2c390 or later (see https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/f368d63ecd89e01fd2cf0b1c4def5fc782b2c390). Until patching is complete, consider implementing application-level controls to validate AV1 video sources, restrict processing of untrusted video files, and run GStreamer-based applications with minimal privileges. Organizations should also review the Zero Day Initiative advisory at https://www.zerodayinitiative.com/advisories/ZDI-24-567/ for additional technical details.
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