CVE-2021-24025

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Debido a cálculos de tamaño de cadena incorrectos dentro de la función preg_quote, una cadena de entrada grande pasada a la función puede desencadenar un desbordamiento de enteros que conlleva a un desbordamiento de la pila. Este problema afecta a versiones de HHVM anteriores a 4.56.3, todas las versiones entre 4.57.0 y 4.80.1, todas las versiones entre 4.81.0 y 4.93.1 y versiones 4.94.0, 4.95.0, 4.96.0, 4.97.0 , 4.98.0

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-13 CVE Reserved
2021-03-10 CVE Published
2023-11-24 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-122: Heap-based Buffer Overflow
CWE-190: Integer Overflow or Wraparound

CAPEC

References (2)

URL	Tag	Source
https://hhvm.com/blog/2021/02/25/security-update.html	Release Notes

URL	Date	SRC

URL	Date	SRC
https://github.com/facebook/hhvm/commit/08193b7f0cd3910256e00d599f0f3eb2519c44ca	2021-03-16

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				< 4.56.3 Search vendor "Facebook" for product "Hhvm" and version " < 4.56.3"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				>= 4.57.0 <= 4.80.1 Search vendor "Facebook" for product "Hhvm" and version " >= 4.57.0 <= 4.80.1"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				>= 4.81.0 <= 4.93.1 Search vendor "Facebook" for product "Hhvm" and version " >= 4.81.0 <= 4.93.1"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				4.94.0 Search vendor "Facebook" for product "Hhvm" and version "4.94.0"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				4.95.0 Search vendor "Facebook" for product "Hhvm" and version "4.95.0"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				4.96.0 Search vendor "Facebook" for product "Hhvm" and version "4.96.0"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				4.97.0 Search vendor "Facebook" for product "Hhvm" and version "4.97.0"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				4.98.0 Search vendor "Facebook" for product "Hhvm" and version "4.98.0"		-		Affected