CVE-2023-50186

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 metadata 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-22300.

GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-bad-free package contains a collection of plug-ins for GStreamer.

Security Fix(es):

• gstreamer-plugins-bad: Integer overflow leading to heap overwrite in MXF file handling with uncompressed video (CVE-2023-40474)
• gstreamer-plugins-bad: Integer overflow leading to heap overwrite in MXF file handling with AES3 audio (CVE-2023-40475)
• gstreamer-plugins-bad: Integer overflow in H.265 video parser leading to stack overwrite (CVE-2023-40476)
• gstreamer-plugins-bad-free: buffer overflow vulnerability (CVE-2023-50186)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

This update for gstreamer-plugins-bad fixes the following issues:

Adding references for already fixed vulnerability:

• CVE-2023-50186: Fixed heap-based buffer overflow in the AV1 codec parser (ZDI-CAN-22300, bsc#1218534, bsc#1223263)
• CVE-2023-40475: Fixed GStreamer MXF File Parsing Integer Overflow (bsc#1215792).
• CVE-2023-44446: Fixed GStreamer MXF File Parsing Use-After-Free (bsc#1217213).
• CVE-2023-44429: Fixed GStreamer AV1 Codec Parsing Heap-based Buffer Overflow (bsc#1217211).

These are all security issues fixed in the gstreamer-plugins-bad-1.24.0-4.1 package on the GA media of openSUSE Tumbleweed.

GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-bad-free package contains a collection of plug-ins for GStreamer.

Security Fix(es):

• gstreamer-plugins-bad: Integer overflow leading to heap overwrite in MXF file handling with uncompressed video (CVE-2023-40474)

• gstreamer-plugins-bad: Integer overflow leading to heap overwrite in MXF file handling with AES3 audio (CVE-2023-40475)

• gstreamer-plugins-bad: Integer overflow in H.265 video parser leading to stack overwrite (CVE-2023-40476)

• gstreamer-plugins-bad-free: buffer overflow vulnerability (CVE-2023-50186)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 9.4 Release Notes linked from the References section.

This update for gstreamer-plugins-bad, libvpl fixes the following issues:

• Dropped support for libmfx to fix the following CVEs:
  • libmfx: improper input validation (CVE-2023-48368, bsc#1226897)
  • libmfx: improper buffer restrictions (CVE-2023-45221, bsc#1226898)
  • libmfx: out-of-bounds read (CVE-2023-22656, bsc#1226899)
  • libmfx: out-of-bounds write (CVE-2023-47282, bsc#1226900)
  • libmfx: improper buffer restrictions (CVE-2023-47169, bsc#1226901)

The libmfx dependency is replaced by libvpl.

This update for gstreamer-plugins-bad fixes the following issues:

• Dropped support for libmfx to fix the following CVEs:
  • libmfx: improper input validation (CVE-2023-48368, bsc#1226897)
  • libmfx: improper buffer restrictions (CVE-2023-45221, bsc#1226898)
  • libmfx: out-of-bounds read (CVE-2023-22656, bsc#1226899)
  • libmfx: out-of-bounds write (CVE-2023-47282, bsc#1226900)
  • libmfx: improper buffer restrictions (CVE-2023-47169, bsc#1226901)

It was discovered that the AV1 codec plugin in GStreamer could be made to write out of bounds. An attacker could possibly use this issue to cause applications using the plugin to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 22.04 LTS. (CVE-2023-50186, CVE-2024-0444)

It was discovered that the H265 codec plugin in GStreamer could be made to write out of bounds. An attacker could possibly use this issue to cause applications using the plugin to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2025-3887)