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: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: 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.