Bug 1542035 (CVE-2017-18120)

Summary:	CVE-2017-18120 gifsicle: Double-free in the read_gif function
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	orion
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	gifsicle 1.91	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:39:13 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:	1542036, 1542037
Bug Blocks:

Description Andrej Nemec 2018-02-05 12:46:09 UTC

A double-free bug in the read_gif function in gifread.c in gifsicle 1.90 allows a remote attacker to cause a denial-of-service attack or unspecified other impact via a maliciously crafted file, because last_name is mishandled, a different vulnerability than CVE-2017-1000421.

Upstream issue:

https://github.com/kohler/gifsicle/issues/117

Upstream patch:

https://github.com/kohler/gifsicle/commit/118a46090c50829dc543179019e6140e1235f909

Comment 1 Andrej Nemec 2018-02-05 12:46:48 UTC

Created gifsicle tracking bugs for this issue:

Affects: epel-all [bug 1542036]
Affects: fedora-all [bug 1542037]

Comment 2 Product Security DevOps Team 2019-06-08 03:39:13 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.