CVE-2023-37328
Published: 03 May 2024
Summary
CVE-2023-37328 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 7.9% 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 PGS subtitle file parser, tracked as CVE-2023-37328. The flaw stems from insufficient validation of the length of attacker-supplied data before it is copied into a heap buffer, allowing memory corruption during file processing. The issue affects installations of GStreamer that parse PGS subtitles and was originally reported as ZDI-CAN-20994.
Remote attackers can exploit the vulnerability by supplying a malicious PGS file to any application or service that uses the affected GStreamer library. Successful exploitation grants arbitrary code execution in the context of the process handling the subtitle data, with no authentication required and only user interaction needed to trigger the file parse.
The GStreamer project has published security advisory SA-2023-0003 detailing the issue and corresponding fixes, while the Zero Day Initiative has released ZDI-23-901 with additional technical analysis. Downstream distributions such as Fedora have issued coordinated package updates to address the vulnerability. The associated EPSS score has remained flat at 0.0771 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-41232
Vulnerability details
GStreamer PGS 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 PGS 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-20994.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.