CVE-2018-5711

mediumpriority · track · 37EPSS 0.132 · 96 %ileexploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

13.2% (96th) EPSS

CVSS 4.3 · medium

Is it mine?

22 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP before 5.6.33, 7.0.x before 7.0.27, 7.1.x before 7.1.13, and 7.2.x before 7.2.1, has an integer signedness error that leads to an infinite loop via a crafted GIF file, as demonstrated by a call to the imagecreatefromgif or imagecreatefromstring PHP function. This is related to GetCode_ and gdImageCreateFromGifCtx.

cvss

Technical severity, 0–10. One row per scoring source.

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.05.5mediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.05.2mediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:Psecondary · CVSS-BT (t0sche)

v3.15.5mediumAV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-681USprimaryCWE-835USprimaryCWE-400US

exploits (2)

Public proof-of-concept and weaponised exploit code.

huzhenghui/Test-7-2-0-PHP-CVE-2018-5711huzhenghui/Test-7-2-0-PHP-CVE-2018-5711PoC · poc_in_github
huzhenghui/Test-7-2-1-PHP-CVE-2018-5711huzhenghui/Test-7-2-1-PHP-CVE-2018-5711PoC · poc_in_github

affected products (22)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
n/a n/a≤ n/aenisa_euvdEU
PHP Group PHP≤ 5.6.33fstec_bduRU
PHP Group PHP7.0.0 → 7.0.27fstec_bduRU
PHP Group PHP7.1.0 → 7.1.13fstec_bduRU
PHP Group PHP7.2.0 → 7.2.1fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.5 «Смоленск»fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.6 «Смоленск»fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition для «Эльбрус»≤ 8.1 «Ленинград»fstec_bduRU
Сообщество свободного программного обеспечения libgd2≤ 1.3.29fstec_bduRU
canonical ubuntu linux= 14.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 16.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 18.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
debian debian linux= 7.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
php php≤ 7.1.12nvdUScpe:2.3:a:php:php:*:*:*:*:*:*:*:*
php php≤ 5.6.32nvdUScpe:2.3:a:php:php:*:*:*:*:*:*:*:*
php php7.0.0 → 7.0.26nvdUScpe:2.3:a:php:php:*:*:*:*:*:*:*:*

showing 20 of 22

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-0990PHP: Schwachstelle ermöglicht Denial of ServiceDeutsch2018-01-25csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in PHP ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2018-01-16modified 2026-06-17

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Related entries.

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+1547 more

references (34)

External citations — patches, advisories, analysis.

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