CVE-2023-40476
Description
GStreamer H265 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 H265 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-21768.
How to fix CVE-2023-40476
To remediate CVE-2023-40476, upgrade the affected package to a fixed version below.
- —upgrade to 1.18.4-3+deb11u2 or later
Is CVE-2023-40476 being exploited?
Moderate — EPSS is 6.2%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0, < 1.18.4-3+deb11u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |