CVE-2018-14551

Publication date 23 July 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The ReadMATImageV4 function in coders/mat.c in ImageMagick 7.0.8-7 uses an uninitialized variable, leading to memory corruption.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
imagemagick	18.04 LTS bionic	Fixed 8:6.9.7.4+dfsg-16ubuntu6.4
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

sbeattie

introduced in imagemagick6 in 210474b2fac6a661bfa7ed563213920e93e76395 safe to apply fix in any event ReadMATImageV4 introduced in e806bc5559474b19114faf235266dbb8f6b206ee, predates xenial etc

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
imagemagick	Upstream: 389ecc3 Upstream: db7a4be

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

References

Related Ubuntu Security Notices (USN)

USN-3785-1
ImageMagick vulnerabilities
4 October 2018

Other references

https://www.cve.org/CVERecord?id=CVE-2018-14551