CVE-2021-24025

Severity CVSS v4.0:

Pending analysis

Type:

CWE-190 Integer Overflow or Wraparound

Publication date:

10/03/2021

Last modified:

16/03/2021

Description

Due to incorrect string size calculations inside the preg_quote function, a large input string passed to the function can trigger an integer overflow leading to a heap overflow. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

9.80

Severity 3.x

CRITICAL

Vector 2.0

AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0

7.50

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:facebook:hhvm::::::::		4.56.3 (excluding)
cpe:2.3:a:facebook:hhvm::::::::	4.57.0 (including)	4.80.1 (including)
cpe:2.3:a:facebook:hhvm::::::::	4.81.0 (including)	4.93.1 (including)
cpe:2.3:a:facebook:hhvm:4.94.0:::::::*
cpe:2.3:a:facebook:hhvm:4.95.0:::::::*
cpe:2.3:a:facebook:hhvm:4.96.0:::::::*
cpe:2.3:a:facebook:hhvm:4.97.0:::::::*
cpe:2.3:a:facebook:hhvm:4.98.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-24025

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools