CVE-2017-7963

7.5 HIGH
Published: April 19, 2017 Modified: May 13, 2026
View on NVD

Description

The GNU Multiple Precision Arithmetic Library (GMP) interfaces for PHP through 7.1.4 allow attackers to cause a denial of service (memory consumption and application crash) via operations on long strings. NOTE: the vendor disputes this, stating "There is no security issue here, because GMP safely aborts in case of an OOM condition. The only attack vector here is denial of service. However, if you allow attacker-controlled, unbounded allocations you have a DoS vector regardless of GMP's OOM behavior.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://bugs.php.net/bug.php?id=74308
Source: cve@mitre.org
Issue Tracking Vendor Advisory
https://bugs.php.net/bug.php?id=74308
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Vendor Advisory

2 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
1.7%
75th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

php