Bug 1852015 (CVE-2020-15304)

Summary:	CVE-2020-15304 OpenEXR: An invalid tiled input file could cause invalid memory access in TiledInputFile::TiledInputFile() in IlmImf/ImfTiledInputFile.cpp
Product:	[Other] Security Response	Reporter:	Michael Kaplan <mkaplan>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jeischma, jridky, kwizart, manisandro, rdieter, rh-spice-bugs
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	OpenEXR 2.5.2	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-07-02 01:27:41 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:	1852016, 1852017, 1910630
Bug Blocks:	1852018

Description Michael Kaplan 2020-06-29 15:28:45 UTC

An issue was discovered in OpenEXR before 2.5.2. An invalid tiled input file could cause invalid memory access in TiledInputFile::TiledInputFile() in IlmImf/ImfTiledInputFile.cpp, as demonstrated by a NULL pointer dereference.

References:

https://github.com/AcademySoftwareFoundation/openexr/blob/master/CHANGES.md
https://github.com/AcademySoftwareFoundation/openexr/blob/master/SECURITY.md
https://github.com/AcademySoftwareFoundation/openexr/pull/727
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v2.5.2

Comment 1 Michael Kaplan 2020-06-29 15:29:05 UTC

Created OpenEXR tracking bugs for this issue:

Affects: fedora-all [bug 1852016]


Created mingw-OpenEXR tracking bugs for this issue:

Affects: fedora-all [bug 1852017]

Comment 2 Todd Cullum 2020-07-01 22:24:51 UTC

In TiledInputFile::TiledInputFile() there's a catch block which would attempt to delete memory pointed to by NULL _data->tileBuffers pointers. The data is retrieved from an input stream that could accept an invalid tiled input file. This would cause a crash.

Comment 3 Todd Cullum 2020-07-01 22:25:57 UTC

Statement:

Versions of OpenEXR shipped with Red Hat Enterprise Linux 6, 7, and 8 are not affected by this flaw as the vulnerable code was introduced in newer versions of OpenEXR.

Comment 4 Product Security DevOps Team 2020-07-02 01:27:41 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-2020-15304