Bug 1992210 (CVE-2021-34335)

Summary:	CVE-2021-34335 exiv2: DoS due to FPE in Exiv2::Internal::resolveLens0xffff
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
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:		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:	1992211, 1992212, 1996173, 1996174, 1996175
Bug Blocks:	1992216

Description Guilherme de Almeida Suckevicz 2021-08-10 18:05:25 UTC

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A floating point exception (FPE) due to an integer divide by zero was found in Exiv2 versions v0.27.4 and earlier. The FPE is triggered when Exiv2 is used to print the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when printing the interpreted (translated) data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p t` or `-P t`). The bug is fixed in version v0.27.5.

Reference:
https://github.com/Exiv2/exiv2/security/advisories/GHSA-pvjp-m4f6-q984

Upstream patch:
https://github.com/Exiv2/exiv2/pull/1750

Comment 1 Guilherme de Almeida Suckevicz 2021-08-10 18:05:45 UTC

Created exiv2 tracking bugs for this issue:

Affects: fedora-all [bug 1992211]


Created mingw-exiv2 tracking bugs for this issue:

Affects: fedora-all [bug 1992212]