Buffer overflow in Ffmpeg
CVE-2022-2566
A heap out-of-bounds memory write exists in FFMPEG since version 5.1. The size calculation in `build_open_gop_key_points()` goes through all entries in the loop and adds `sc->ctts_data[i].count` to `sc->sample_offsets_count`. This can lead to an integer overflow resulting in a small allocation with `av_calloc()`. An attacker can cause remote code execution via a malicious mp4 file. We recommend upgrading past commit c953baa084607dd1d84c3bfcce3cf6a87c3e6e05
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.008 · change: +0.001
Affected products
- Ffmpeg — versions 5.1, ab77b878f1205225c6de1370fb0e998dbcc8bc69, unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/FFmpeg/FFmpeg/commit/c953baa084607dd1d84c3bfcce3cf6a87c3e6e05 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-2566?
- CVE-2022-2566 is a critical-severity vulnerability in Ffmpeg, classified under Heap-based Buffer Overflow. CVSS score: 9.0/10. Published 2022-09-23.
- How severe is CVE-2022-2566?
- Critical severity. CVSS v3 base score is 9.0 out of 10.
- Is CVE-2022-2566 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.