CVE-2017-7866

Publication date 14 April 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

FFmpeg before 2017-01-23 has an out-of-bounds write caused by a stack-based buffer overflow related to the decode_zbuf function in libavcodec/pngdec.c.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ffmpeg	17.04 zesty	Not affected
	16.10 yakkety	Fixed 7:3.0.7-0ubuntu0.16.10.1
	16.04 LTS xenial	Fixed 7:2.8.11-0ubuntu0.16.04.1
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
libav	17.04 zesty	Not in release
	16.10 yakkety	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not affected
	12.04 LTS precise	Not affected

Severity score breakdown

CVSS version: CVSS v3.0

Base score 9.8 · Critical

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	9.8 · Critical
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2017-7866

Cvss 3 Severity Score

Description

Status

Severity score breakdown

References

Other references

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