Bug 2002672 (CVE-2020-18899)

Summary:	CVE-2020-18899 exiv2: uncontrolled memory allocation in DataBufdata may lead to DoS
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jgrulich, manisandro, michel, rdieter
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-09-14 18:21:28 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:	2002673, 2002674
Bug Blocks:	2002681

Description Marian Rehak 2021-09-09 13:23:30 UTC

An uncontrolled memory allocation in DataBufdata(subBox.length-sizeof(box)) function of Exiv2 0.27 allows attackers to cause a denial of service (DOS) via a crafted input.

Upstream Issue:

https://github.com/Exiv2/exiv2/issues/742

Comment 1 Marian Rehak 2021-09-09 13:23:51 UTC

Created exiv2 tracking bugs for this issue:

Affects: fedora-all [bug 2002673]


Created mingw-exiv2 tracking bugs for this issue:

Affects: fedora-all [bug 2002674]

Comment 2 Product Security DevOps Team 2021-09-14 18:21:28 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-2020-18899