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[email protected]CVE-2020-7065

HistoryApr 01, 2020 - 4:15 a.m.

CVE-2020-7065

2020-04-0104:15:13

CWE-121

CWE-787

[email protected]

web.nvd.nist.gov

748

In Wild

php

cve-2020-7065

mb_strtolower()

utf-32le

buffer overflow

memory corruption

code execution

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.6

Confidence

High

EPSS

0.005

Percentile

76.3%

JSON

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.

Affected configurations

NVD

Node

phpphpRange7.3.0–7.3.16

phpphpRange7.4.0–7.4.4

Node

debiandebian_linuxMatch10.0

Node

canonicalubuntu_linuxMatch12.04esm

canonicalubuntu_linuxMatch14.04esm

canonicalubuntu_linuxMatch16.04lts

canonicalubuntu_linuxMatch18.04lts

canonicalubuntu_linuxMatch19.10

canonicalubuntu_linuxMatch20.04lts

Node

tenabletenable.scRange<5.19.0

CNA Affected

[
  {
    "product": "PHP",
    "vendor": "PHP Group",
    "versions": [
      {
        "lessThan": "7.3.16",
        "status": "affected",
        "version": "7.3.x",
        "versionType": "custom"
      },
      {
        "lessThan": "7.4.4",
        "status": "affected",
        "version": "7.4.x",
        "versionType": "custom"
      }
    ]
  }
]