Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-37327 is a high-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Gstreamer Gstreamer. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique LSA Secrets (T1003.004); ranked in the top 23% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-8 (Security and Privacy Engineering Principles) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
GStreamer contains an integer overflow vulnerability during the parsing of FLAC audio files that can lead to remote code execution. The flaw, tracked as CVE-2023-37327 and originally ZDI-CAN-20775, stems from insufficient validation of user-supplied data, allowing an overflow to occur before a buffer is allocated. Affected installations of the GStreamer multimedia framework are exposed when processing malformed FLAC content, and the issue carries a CVSS 3.1 score of 8.8.
Remote attackers can exploit the vulnerability without authentication by supplying a specially crafted FLAC file to any application that uses the vulnerable GStreamer library. Successful exploitation grants arbitrary code execution in the context of the affected process, with attack vectors depending on how the library is integrated into media-handling workflows.
Public advisories from the GStreamer project and Zero Day Initiative, along with distribution notices such as those from Fedora, provide further details on the flaw and available updates. The associated EPSS score has remained low, with a current value of 0.0534 and a peak of 0.0609.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-41231
Vulnerability Data
GStreamer FLAC File Parsing Integer 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…
more
on the implementation. The specific flaw exists within the parsing of FLAC audio files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20775.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V5.2.6
Mitigating Controls (NIST 800-53 r5) AI
Developer testing and evaluation (static analysis, fuzzing, unit tests) directly finds integer overflow defects before deployment.
Secure engineering principles require use of safe arithmetic constructs or language features that structurally eliminate integer overflow during calculation.
Input validation enforces bounds on values before arithmetic, stopping the conditions that trigger overflow or wraparound.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly require use of safe arithmetic, bounds checks, and testing that prevent integer overflows.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.