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Fencer Vulns
critical 9.8

CVE-2016-3177 json

Multiple use-after-free and double-free vulnerabilities in gifcolor.c in GIFLIB 5.1.2 have unspecified impact and attack vectors.

published 2017-01-23 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-4218

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

Multiple use-after-free and double-free vulnerabilities in gifcolor.c in GIFLIB 5.1.2 have unspecified impact and attack vectors.

Patch / fix

  • giflib Debian 14, Debian 13, Debian 12 5.1.4-0.1

debian advisories DEBIAN-CVE-2016-3177

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-3177 updated cvss 3.3

giflib: Use-after-free in gifcolor utility

  • Red Hat Enterprise Linux 5 giflib Red Hat Enterprise Linux 6 giflib, giflib-utils Red Hat Enterprise Linux 7 giflib, giflib-utils Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) Operational Tools phantomjs Red Hat OpenStack Platform 8 (Liberty) Operational Tools phantomjs
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.63% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.