Attacker Value
Low
(1 user assessed)
Exploitability
Very Low
(1 user assessed)
User Interaction
Required
Privileges Required
None
Attack Vector
Network
0

CVE-2020-7065

Disclosure Date: March 17, 2020
Exploited in the Wild
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.

Add Assessment

1
Ratings
  • Attacker Value
    Low
  • Exploitability
    Very Low
Technical Analysis

With a CVSS base score of 7.4 and 1.7 million code hits from a Github search, this is looking like it has potential.

CVSS V3 Severity and Metrics
Base Score:
8.8 High
Impact Score:
5.9
Exploitability Score:
2.8
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • PHP Group

Products

  • PHP

Exploited in the Wild

Reported by:
Technical Analysis