CVE-2020-7067 OOB Read in urldecode()

2020-04-2720:38:39

CWE-125

CWE-196

php

www.cve.org

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

AI Score

7.5

Confidence

High

EPSS

0.017

Percentile

88.1%

JSON

In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes.

CNA Affected

[
  {
    "product": "PHP",
    "vendor": "PHP Group",
    "versions": [
      {
        "status": "affected",
        "version": "7.2.x below 7.2.30"
      },
      {
        "status": "affected",
        "version": "7.3.x below 7.3.17 and 7.4.x below 7.4.5"
      }
    ]
  }
]