CVE-2018-6405

Publication date 30 January 2018

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

In the ReadDCMImage function in coders/dcm.c in ImageMagick before 7.0.7-23, each redmap, greenmap, and bluemap variable can be overwritten by a new pointer. The previous pointer is lost, which leads to a memory leak. This allows remote attackers to cause a denial of service.

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-16ubuntu6.2
	17.10 artful	Fixed 8:6.9.7.4+dfsg-16ubuntu2.2
	16.04 LTS xenial	Fixed 8:6.8.9.9-7ubuntu5.11
	14.04 LTS trusty	Fixed 8:6.7.7.10-6ubuntu3.11

Notes

mdeslaur

not fixing memory leak in trusty and xenial

Patch details

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

Package	Patch details
imagemagick	Upstream: 1fbed78

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H