CVE-2017-18120

Name: CVE-2017-18120
Creator: NVD / NIST
Published: 2018-02-02T09:29:00.227+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.80%

Last modified Jun 17, 2026

CVE-2017-18120 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.80% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

1.80%

75.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-415

Affected Software

Vendor	Product	Versions
Lcdf	Gifsicle	1.90

References

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878739Mailing List, Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881120Mailing List, Third Party Advisory
https://github.com/kohler/gifsicle/commit/118a46090c50829dc543179019e6140e1235f909Patch, Third Party Advisory
https://github.com/kohler/gifsicle/issues/117Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878739Mailing List, Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881120Mailing List, Third Party Advisory
https://github.com/kohler/gifsicle/commit/118a46090c50829dc543179019e6140e1235f909Patch, Third Party Advisory
https://github.com/kohler/gifsicle/issues/117Third Party Advisory

Timeline

Published: Feb 2, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-18120?

How severe is CVE-2017-18120?

Severity scoring for CVE-2017-18120 is pending analysis. The EPSS model estimates a 1.80% probability of exploitation in the next 30 days.

How do I fix CVE-2017-18120?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-18120?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST