What is CVE-2018-7557?

CVE-2018-7557 is a medium-severity vulnerability in Ffmpeg, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2018-02-28.

How severe is CVE-2018-7557?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Out-of-bounds Read in Ffmpeg

CVE-2018-7557

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.

Vulnerability class: Buffer Overflow

EPSS: 0.019 (77.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Ffmpeg
Debian Debian_linux — versions 8.0, 9.0
N/a — versions n/a

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

cve@mitre.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-7557?: CVE-2018-7557 is a medium-severity vulnerability in Ffmpeg, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2018-02-28.
How severe is CVE-2018-7557?: Medium severity. CVSS v3 base score is 6.5 out of 10.