CVE-2018-5711

What it is

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.

At a glance

Exploitability

Can be exploited locally on the machine without logging in, but needs a user to act. High risk of service disruption.

Exploit odds

13.2% chance of exploitation in the next 30 days (EPSS). Higher than most.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2018-01-16 09:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:00 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 13.2% in the next 30 days (EPSS).
• Severity: 5.5 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2018-01-16 09:29 UTC

Last modified

2026-06-17 02:00 UTC

Exploit probability

13.2% · EPSS, next 30 days

Weakness

CWE-681

Record status

Modified

Affected

• PHP ≤ 5.6.32
• PHP ≤ 7.0.26
• PHP ≤ 7.1.12
• PHP 7.2.0
• Debian Linux 7.0
• Debian Linux 8.0
• Canonical Ubuntu Linux 14.04
• Canonical Ubuntu Linux 16.04

Attack profile CVSS 3.0 · 5.5

Attack vector

Local

Complexity

Low

Privileges needed

None

User interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2018-5711.md and follow it. Check whether this project is affected by CVE-2018-5711. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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