Bug 1531724 (CVE-2018-4868)

Summary:	CVE-2018-4868 exiv2: Excessive memory allocation in Exiv2::Jp2Image::readMetadata function in jp2image.cpp
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	jgrulich, michel, rdieter, rschiron
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	exiv 0.27	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-04-28 16:31:50 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:	1531729, 1701506, 1701507
Bug Blocks:	1696279

Description Laura Pardo 2018-01-05 21:42:57 UTC

The Exiv2::Jp2Image::readMetadata function in jp2image.cpp in Exiv2 0.26 allows remote attackers to cause a denial of service (excessive memory allocation) via a crafted file.

Upstream Issue:
https://github.com/Exiv2/exiv2/issues/202

Comment 1 Laura Pardo 2018-01-05 21:43:28 UTC

Created exiv2 tracking bugs for this issue:

Affects: fedora-all [bug 1531729]

Comment 2 Riccardo Schirone 2019-04-19 09:49:53 UTC

Upstream patch:
https://github.com/Exiv2/exiv2/commit/9cddfa514d4fddf7a5f93be74dae2e93d9722204

Comment 3 Riccardo Schirone 2019-04-19 10:00:54 UTC

A big allocation, caused by not enough checks, is present in Jp2Image::redMetadata() when the box type is Jp2Header and the subBox is ColorHeader.

Comment 6 errata-xmlrpc 2020-04-28 15:26:58 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:1577 https://access.redhat.com/errata/RHSA-2020:1577

Comment 7 Product Security DevOps Team 2020-04-28 16:31:50 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-2018-4868