VULNERABILITY INTELLIGENCE

CVE-2017-7963

CVSS score7.5 HIGH
EPSS probability2.00%
CISA KEVNot currently listed
Published2017-04-19
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • CWE-770: Allocation of Resources Without Limits or Throttling

Primary references