Bug 1973689 (CVE-2021-3610)

Summary:	CVE-2021-3610 ImageMagick: heap-based buffer overflow in ReadTIFFImage() in coders/tiff.c
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	fedora, jhorak, mike, pahan
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	ImageMagick 7.0.11-14	Doc Type:	If docs needed, set a value
Doc Text:	A heap-based buffer overflow vulnerability was found in ImageMagick in ReadTIFFImage() in coders/tiff.c. This issue is due to an incorrect setting of the pixel array size, which can lead to a crash and segmentation fault.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-06-21 22:40:25 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1973691, 1973692
Bug Blocks:	1967292, 1973694

Description Guilherme de Almeida Suckevicz 2021-06-18 13:45:08 UTC

A heap-based buffer overflow vulnerability was found in ImageMagick in ReadTIFFImage() in coders/tiff.c because of an incorrect setting of the pixel array size which can lead to crash and segmentation fault. This flaw affects ImageMagick versions prior to 7.1.0-0 and 7.0.11-14.

Reference and upstream patch:
https://github.com/ImageMagick/ImageMagick/commit/930ff0d1a9bc42925a7856e9ea53f5fc9f318bf3

Comment 1 Guilherme de Almeida Suckevicz 2021-06-18 13:45:51 UTC

Created ImageMagick tracking bugs for this issue:

Affects: epel-8 [bug 1973691]
Affects: fedora-all [bug 1973692]

Comment 2 Todd Cullum 2021-06-21 21:40:41 UTC

Flaw summary:

ImageMagick's ReadTIFFImage() function in coders/tiff.c assigned a size (`extent`) used to allocate memory via AcquireQuantumMemory()[1]. `extent` was calculated improperly and was too small, which could lead to an out-of-bounds read subsequently such as when converting an image. The upstream patch calculates `extent` to be a larger value in order to avoid this.

1. https://imagemagick.org/api/MagickCore/memory_8c.html#a417a408aa35c9f385d31d2e40eed4b27

Comment 3 Product Security DevOps Team 2021-06-21 22:40:25 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-3610