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CVE-2018-5711

26
FAUCET Score

CVE-2018-5711 is an integer signedness error in the GD Graphics Library (libgd), specifically in gd_gif_in.c, affecting PHP versions before 5.6.33, 7.0.27, 7.1.13, and 7.2.1. This flaw allows a crafted GIF file to trigger an infinite loop when processed by functions like imagecreatefromgif, leading to a denial of service. With a CVSS score of 5.5 (Medium), this vulnerability requires local access and user interaction (e.g., opening a malicious GIF) to achieve high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.6.32CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 7.0.0, <= 7.0.26CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
> 7.1.0, <= 7.1.12CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
7.2.0CPE matchmatch criteria
cpe:2.3:a:php:php:7.2.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
13.20%
Probability of exploitation in next 30 days
EPSS Percentile
96.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.1320 is in the 99th percentile among its peer group of 5,765 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (17)

redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-php70-php-0:7.0.27-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-php70-php-0:7.0.27-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-php70-php-0:7.0.27-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-php71-php-0:7.1.30-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-php70-php-0:7.0.27-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-php70-php-0:7.0.27-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-php71-php-0:7.1.30-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: rh-php70-php-0:7.0.27-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: rh-php71-php-0:7.1.30-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-php71-php-0:7.1.30-1.el7
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: gd
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: gd
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-php56-php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: php53

Vendor Advisories (1)

redhatCVE-2018-5711Low

gd: Infinite loop in gdImageCreateFromGifCtx() in gd_gif_in.c

Nov 25, 2017

References

php.net / ChangeLog-5.php
Release NotesVendor Advisory
php.net / ChangeLog-7.php
Release NotesVendor Advisory
access.redhat.com / errata/RHSA-2018:1296
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2519
bugs.php.net / bug.php
PatchVendor Advisory
lists.debian.org / debian-lts-announce/2018/01/msg00022.html
Third Party Advisory
lists.debian.org / debian-lts-announce/2019/01/msg00028.html
Third Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/3CZ2QADQTKRHTGB2AHD7J4QQNDLBEMM6
security.gentoo.org / glsa/201903-18
Third Party Advisory
usn.ubuntu.com / 3755-1
Third Party Advisory
oracle.com / security-alerts/cpuapr2020.html