CVE-2018-7557

Description

The decode_init function in libavcodec/utvideodec.c in FFmpeg 2.8 through 3.4.2 allows remote attackers to cause a denial of service (Out of array read) via an AVI file with crafted dimensions within chroma subsampling data.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.07% Top 25%
Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory ffmpeg.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/7414d0bda7763f9bd69c26c068e482ab297c1c96 patch vendor advisory
https://www.debian.org/security/2018/dsa-4249 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html third party advisory mailing list
https://security.gentoo.org/glsa/202003-65 third party advisory vendor advisory
https://github.com/FFmpeg/FFmpeg/commit/e724bd1dd9efea3abb8586d6644ec07694afceae third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2018-7557?
CVE-2018-7557 has been scored as a medium severity vulnerability.
How to fix CVE-2018-7557?
To fix CVE-2018-7557, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-7557 being actively exploited in the wild?
It is possible that CVE-2018-7557 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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