CVE-2023-40476
gstreamer-plugins-bad: Integer overflow in H.265 video parser leading to stack overwrite
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 20, 2023
Updated · July 31, 2026
Description
A stack-based buffer overflow was found in the GStreamer Plugins Bad when handling malformed files with H.265 video streams. This issue requires user interaction with the library and may allow a malicious user to cause an integer overflow before allocating the buffer, triggering a crash or code execution via heap manipulation, executing code in the context of the current process.
Statement
Red Hat rates this issue as a Moderate impact, as this requires a local user and interaction with the library in order to be vulnerable to a possible crash.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-190 · Integer Overflow or Wraparound