CVE-2020-35964 : track_header in libavformat/vividas.c in FFmpeg 4.3.1 has an out-of-bounds write

track_header in libavformat/vividas.c in FFmpeg 4.3.1 has an out-of-bounds write because of incorrect extradata packing.

Published 2021-01-03 19:15:12

Updated 2022-08-06 03:23:21

Source MITRE

View at NVD, CVE.org

Vulnerability category: Memory Corruption

Products affected by CVE-2020-35964

Ffmpeg » Ffmpeg » Version: 4.3.1
cpe:2.3:a:ffmpeg:ffmpeg:4.3.1:*:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A

EPSS FAQ

0.53%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 65 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	2.8	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

https://github.com/FFmpeg/FFmpeg/commit/27a99e2c7d450fef15594671eef4465c8a166bd7

avformat/vividas: improve extradata packing checks in track_header() · FFmpeg/FFmpeg@27a99e2 · GitHub
Patch;Third Party Advisory
https://security.gentoo.org/glsa/202105-24

FFmpeg: Multiple vulnerabilities (GLSA 202105-24) — Gentoo security
Third Party Advisory

CVEs referencing this url
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26622

26622 - ffmpeg:ffmpeg_dem_VIVIDAS_fuzzer: Heap-buffer-overflow in avio_read - oss-fuzz
Exploit;Issue Tracking;Third Party Advisory

Jump to