Bug 1542035 (CVE-2017-18120) - CVE-2017-18120 gifsicle: Double-free in the read_gif function
Summary: CVE-2017-18120 gifsicle: Double-free in the read_gif function
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2017-18120
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1542036 1542037
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-02-05 12:46 UTC by Andrej Nemec
Modified: 2019-09-29 14:31 UTC (History)
1 user (show)

Fixed In Version: gifsicle 1.91
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Clone Of:
Environment:
Last Closed: 2019-06-08 03:39:13 UTC
Embargoed:

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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.
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