CVE-2023-37329
Published: 03 May 2024
Summary
CVE-2023-37329 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Gstreamer Gstreamer. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 8.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
GStreamer contains a heap-based buffer overflow vulnerability in its SRT subtitle file parser that can lead to remote code execution. The flaw, tracked as CVE-2023-37329 and originally ZDI-CAN-20968, stems from insufficient validation of user-supplied data lengths before copying into a heap buffer, affecting installations that process SRT files through the library. It carries a CVSS 3.1 score of 8.8 and is also associated with CWE-122 and CWE-787.
Remote attackers can trigger the issue by supplying a malicious SRT file to an affected GStreamer-based application, achieving arbitrary code execution in the context of the current process. Exploitation requires interaction with the library but can occur through varied attack vectors depending on how the application consumes subtitle data.
Official advisories from the GStreamer project and Zero Day Initiative, along with distribution notices such as those from Fedora, address the issue and point to updated packages that resolve the parsing flaw. The EPSS score has remained flat at 0.0630 with no material increase observed after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-41233
Vulnerability details
GStreamer SRT File Parsing 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…
more
depending on the implementation. The specific flaw exists within the parsing of SRT subtitle files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20968.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.