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Fencer Vulns
high 7.5

CVE-2018-14553 json

gdImageClone in gd.c in libgd 2.1.0-rc2 through 2.2.5 has a NULL pointer dereference allowing attackers to crash an application via a speci…

published 2020-02-11 6 y ago modified 2026-06-17 4 mo ago also EUVD-2018-6462

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

gdImageClone in gd.c in libgd 2.1.0-rc2 through 2.2.5 has a NULL pointer dereference allowing attackers to crash an application via a specific function call sequence. Only affects PHP when linked with an external libgd (not bundled).

Patch / fix

  • libgd2 Debian 14, Debian 13, Debian 12 2.3.0-1

debian advisories DEBIAN-CVE-2018-14553

  • libgd2 Ubuntu 16.04 LTS 2.1.1-4ubuntu0.16.04.12
  • libgd2 Ubuntu 18.04 LTS 2.2.5-4ubuntu0.4
  • libgd2 Ubuntu Pro 14.04 LTS 2.1.0-3ubuntu0.11+esm1

ubuntu advisories UBUNTU-CVE-2018-14553

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 RHEL 8 2.2.5-7.el8

red hat advisories RHSA-2020:4659

  • gd SLE Module for Package Hub 15 SP1, SLE Module for Desktop Applications 15 SP1, SLE Module for Basesystem 15 SP1 2.2.5-4.14.1
  • gd SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +6 more 2.1.0-24.17.1

suse advisories SUSE-SU-2020:0594-2SUSE-SU-2020:0623-1SUSE-SU-2020:0594-1

  • gd openSUSE Tumbleweed 2.3.3-1.1
  • gd openSUSE Leap 15.1 2.2.5-lp151.6.6.1

opensuse advisories openSUSE-SU-2024:10777-1openSUSE-SU-2020:0332-1

  • gd AlmaLinux 8 2.2.5-7.el8

almalinux advisories ALSA-2020:4659

  • gd Rocky Linux 8 2.2.5-7.el8

rocky linux advisories RLSA-2020:4659

  • gd Alpine 3.11, Alpine 3.10, Alpine 3.9 +1 more 2.2.5-r3
  • gd Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 2.3.0-r0

alpine advisories ALPINE-CVE-2018-14553

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-2018-14553 updated cvss 7.4

gd: NULL pointer dereference in gdImageClone

  • Red Hat Enterprise Linux AppStream (v. 8) gd 2.2.5-7.el8
    fixed: vendor fix RHSA-2020:4659
  • Red Hat Enterprise Linux 5 gd Red Hat Enterprise Linux 6 gd, gd-progs Red Hat Enterprise Linux 7 gd, gd-progs Red Hat Software Collections rh-php70-php, rh-php71-php, rh-php70-php-gd, rh-php71-php-gd, rh-php70-php-cli, rh-php70-php-dba, +52 more
    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

3.44% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/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.