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Fencer Vulns
critical 9.1

CVE-2016-5116 json

gd_xbm.c in the GD Graphics Library (aka libgd) before 2.2.0, as used in certain custom PHP 5.5.x configurations, allows context-dependent…

published 2016-08-07 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-6067

cvss
9.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.8%
EPSS 3.8% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

gd_xbm.c in the GD Graphics Library (aka libgd) before 2.2.0, as used in certain custom PHP 5.5.x configurations, allows context-dependent attackers to obtain sensitive information from process memory or cause a denial of service (stack-based buffer under-read and application crash) via a long name.

Patch / fix

  • libgd2 Debian 14, Debian 13, Debian 12 2.2.1-1

debian advisories DEBIAN-CVE-2016-5116

  • libgd2 Ubuntu 14.04 LTS 2.1.0-3ubuntu0.2
  • libgd2 Ubuntu 16.04 LTS 2.1.1-4ubuntu0.16.04.2

ubuntu advisories UBUNTU-CVE-2016-5116

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • gd SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +2 more 2.1.0-12.1

suse advisories SUSE-SU-2016:2303-1

  • gd openSUSE Tumbleweed 2.2.3-2.1

opensuse advisories openSUSE-SU-2024:10062-1

  • gd Alpine 3.3, Alpine 3.2 2.2.1-r2

alpine advisories ALPINE-CVE-2016-5116

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2016-5116 updated cvss 4.3

gd: Information leak due to stack overflow in gdCtxPrintf

  • Red Hat Enterprise Linux 5 gd Red Hat Enterprise Linux 6 gd, gd-progs Red Hat Enterprise Linux 7 gd, gd-progs Red Hat OpenShift Enterprise 2 gd
    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

3.81% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.