CVE-2020-25664

Publication date 8 December 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

In WriteOnePNGImage() of the PNG coder at coders/png.c, an improper call to AcquireVirtualMemory() and memset() allows for an out-of-bounds write later when PopShortPixel() from MagickCore/quantum-private.h is called. The patch fixes the calls by adding 256 to rowbytes. An attacker who is able to supply a specially crafted image could affect availability with a low impact to data integrity. This flaw affects ImageMagick versions prior to 6.9.10-68 and 7.0.8-68.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
imagemagick	24.04 LTS noble	Vulnerable, fix deferred
	23.10 mantic	Ignored
	23.04 lunar	Ignored
	22.10 kinetic	Ignored
	22.04 LTS jammy	Vulnerable, fix deferred
	21.10 impish	Ignored
	21.04 hirsute	Ignored
	20.10 groovy	Ignored
	20.04 LTS focal	Vulnerable, fix deferred
	18.04 LTS bionic	Vulnerable, fix deferred
	16.04 LTS xenial	Fixed 8:6.8.9.9-7ubuntu5.16+esm2 Ubuntu Pro
	14.04 LTS trusty	Needs evaluation

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Notes

mdeslaur

fix attempt was reverted unclear what the fix for this issue is as of 2021-06-10

Patch details

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

Package	Patch details
imagemagick	Upstream: 27d3dde Upstream: e16a985

Severity score breakdown

Parameter	Value
Base score	6.1 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	Low
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H