Double Free Affecting gifsicle package, versions <1.91-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-GIFSICLE-339644
- published2 Feb 2018
- disclosed2 Feb 2018
Introduced: 2 Feb 2018
CVE-2017-18120 (opens in a new tab)How to fix?
Upgrade Debian:unstable gifsicle to version 1.91-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream gifsicle package and not the gifsicle package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2017-18120
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878739
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881120
- https://github.com/kohler/gifsicle/commit/118a46090c50829dc543179019e6140e1235f909
- https://github.com/kohler/gifsicle/issues/117
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-18120