Memory corruption via truncated chroma dimensions
Published Jul 1, 2024 · Updated Mar 14, 2025
Buffer overflow in FFmpeg 7.0 allows context-dependent attackers to corrupt memory by supplying a one-line or one-column video frame. The load_input_picture function uses truncating right shifts for chroma-plane dimensions instead of ceiling division, producing zero dimensions that reach a buffer operation as a negative size. Processing the crafted frame requires user interaction; the overflow corrupts encoder-process memory, resulting in a process crash or altered execution.
Summary
What happened
Buffer overflow in FFmpeg 7.0 allows context-dependent attackers to corrupt memory by supplying a one-line or one-column video frame. The load_input_picture function uses truncating right shifts for chroma-plane dimensions instead of ceiling division, producing zero dimensions that reach a buffer operation as a negative size. Processing the crafted frame requires user interaction; the overflow corrupts encoder-process memory, resulting in a process crash or altered execution.
The record
- CVE
- CVE-2024-32230
- Published
- Jul 1, 2024
- Updated
- Mar 14, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-120, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 1, 2024CVE publishedPublication date reported by the CVE source.
- Mar 14, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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