Vulnerability Name:

CVE-2020-7065 (CCN-178287)

Assigned:2020-03-17
Published:2020-03-17
Updated:2021-12-02
Summary: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.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.9 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.9 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.8 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.9 High (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-7065

Source: CCN
Type: PHP Sec Bug #79371
mb_strtolower (UTF-32LE): stack-buffer-overflow at php_unicode_tolower_full

Source: MISC
Type: Exploit, Issue Tracking, Patch, Vendor Advisory
https://bugs.php.net/bug.php?id=79371

Source: XF
Type: UNKNOWN
php-cve20207065-bo(178287)

Source: CONFIRM
Type: Third Party Advisory
https://security.netapp.com/advisory/ntap-20200403-0001/

Source: UBUNTU
Type: Third Party Advisory
USN-4330-1

Source: UBUNTU
Type: Third Party Advisory
USN-4330-2

Source: DEBIAN
Type: Third Party Advisory
DSA-4719

Source: CCN
Type: IBM Security Bulletin 6235058 (API Connect)
IBM API Connect is impacted by vulnerabilities in PHP (CVE-2020-7066, CVE-2020-7065, CVE-2020-7064)

Source: MISC
Type: Patch, Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html

Source: CCN
Type: PHP Web site
PHP

Source: CONFIRM
Type: Release Notes, Vendor Advisory
https://www.php.net/ChangeLog-7.php#7.4.4

Source: CONFIRM
Type: Third Party Advisory
https://www.tenable.com/security/tns-2021-14

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-7065

Vulnerable Configuration:Configuration 1:
  • cpe:/a:php:php:*:*:*:*:*:*:*:* (Version >= 7.3.0 and < 7.3.16)
  • OR cpe:/a:php:php:*:*:*:*:*:*:*:* (Version >= 7.4.0 and < 7.4.4)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*

    • Configuration 4:
  • cpe:/a:tenable:tenable.sc:*:*:*:*:*:*:*:* (Version < 5.19.0)

    • Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:php:php:-:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:api_connect:5.0.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:api_connect:2018.4.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:api_connect:2018.4.1.10:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:api_connect:5.0.8.8:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.redhat.rhsa:def:20203662
    P
    		RHSA-2020:3662: php:7.3 security, bug fix, and enhancement update (Moderate)
    2020-09-08
    BACK
    php php *
    php php *
    debian debian linux 10.0
    canonical ubuntu linux 12.04
    canonical ubuntu linux 14.04
    canonical ubuntu linux 16.04
    canonical ubuntu linux 18.04
    canonical ubuntu linux 19.10
    canonical ubuntu linux 20.04
    tenable tenable.sc *
    php php -
    ibm api connect 5.0.0.0
    ibm api connect 2018.4.1.0
    ibm api connect 2018.4.1.10
    ibm api connect 5.0.8.8