Arbitrary code execution via zero-length audio buffer
Published Apr 26, 2024 · Updated Aug 2, 2024
Heap-based buffer overflow in FFmpeg n113007-g8d24a28d06 allows local users to execute arbitrary code through the stereowiden audio filter. The config_input routine accepts a calculated zero sample length, passes it to av_calloc, and the filter later accesses the resulting buffer out of bounds. Exploitation requires local low-privileged access and filter input that produces a zero length; code runs in the FFmpeg process context.
Summary
What happened
Heap-based buffer overflow in FFmpeg n113007-g8d24a28d06 allows local users to execute arbitrary code through the stereowiden audio filter. The config_input routine accepts a calculated zero sample length, passes it to av_calloc, and the filter later accesses the resulting buffer out of bounds. Exploitation requires local low-privileged access and filter input that produces a zero length; code runs in the FFmpeg process context.
The record
- CVE
- CVE-2023-51794
- Published
- Apr 26, 2024
- Updated
- Aug 2, 2024
- Vendor
- FFmpeg
- Product
- FFmpeg
- Classifications
- CWE-122, T1203
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 26, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=n113007-g8d24a28d06
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- poc13ffmpeg stereowiden testcasefunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo