Bug 1894229 (CVE-2020-27753)

Summary: CVE-2020-27753 ImageMagick: memory leaks in AcquireMagickMemory function
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: fedora, jhorak, mike, pahan, rhel8-maint, security-response-team, stransky
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: ImageMagick 7.0.9-0 Doc Type: If docs needed, set a value
Doc Text:
There are several memory leaks in the MIFF coder in /coders/miff.c due to improper image depth values, which can be triggered by a specially crafted input file. These leaks could potentially lead to an impact to application availability or cause a denial of service. It was originally reported that the issues were in `AcquireMagickMemory()` because that is where LeakSanitizer detected the leaks, but the patch resolves issues in the MIFF coder, which incorrectly handles data being passed to `AcquireMagickMemory()`.
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-11-24 23:34:26 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1901249, 1901250, 1910553    
Bug Blocks: 1891602    

Description Guilherme de Almeida Suckevicz 2020-11-03 18:53:13 UTC
In ImageMagick, there are memory leaks detected in AcquireMagickMemory.

Reference:
https://github.com/ImageMagick/ImageMagick/issues/1757

Upstream patch:
https://github.com/ImageMagick/ImageMagick/commit/bb3acad195de95db86c7509d8072db01890470e0

Comment 1 Guilherme de Almeida Suckevicz 2020-11-03 18:53:16 UTC
Acknowledgments:

Name: Suhwan Song (Seoul National University)

Comment 2 Todd Cullum 2020-11-03 22:54:07 UTC
Flaw summary:

There are several memory leaks in the MIFF coder in /coders/miff.c due to improper image depth values, which can be triggered by a specially crafted input file. These leaks could potentially lead to an impact to application availability or cause a denial of service. It was originally reported that the issues were in `AcquireMagickMemory()` because that is where LeakSanitizer detected the leaks, but the patch resolves issues in the MIFF coder, which incorrectly handles data being passed to `AcquireMagickMemory()`.

Comment 3 Todd Cullum 2020-11-03 22:54:44 UTC
Statement:

This flaw is out of support scope for Red Hat Enterprise Linux 5, 6, and 7. Inkscape is not affected because it no longer uses a bundled ImageMagick in Red Hat Enterprise Linux 8. For more information regarding support scopes, please see https://access.redhat.com/support/policy/updates/errata .

Comment 4 Guilherme de Almeida Suckevicz 2020-11-24 19:13:29 UTC
Created ImageMagick tracking bugs for this issue:

Affects: epel-8 [bug 1901249]
Affects: fedora-all [bug 1901250]

Comment 5 Product Security DevOps Team 2020-11-24 23:34:26 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-2020-27753