Bug 1526052 (CVE-2017-17669)

Summary:	CVE-2017-17669 exiv2: Heap-based buffer over-read in PngChunk::keyTXTChunk function of pngchunk_int.cpp
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	jgrulich, 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:	2019-06-08 03:34:21 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:	1526053
Bug Blocks:

Description Pedro Sampaio 2017-12-14 17:07:35 UTC

There is a heap-based buffer over-read in the Exiv2::Internal::PngChunk::keyTXTChunk function of pngchunk_int.cpp in Exiv2 0.26. A crafted PNG file will lead to a remote denial of service attack.

Upstream issue:

https://github.com/Exiv2/exiv2/issues/187

Comment 1 Pedro Sampaio 2017-12-14 17:08:03 UTC

Created exiv2 tracking bugs for this issue:

Affects: fedora-all [bug 1526053]