CVE-2019-11935

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Insufficient boundary checks when processing a string in mb_ereg_replace allows access to out-of-bounds memory. This issue affects HHVM versions prior to 3.30.12, all versions between 4.0.0 and 4.8.5, all versions between 4.9.0 and 4.23.1, as well as 4.24.0, 4.25.0, 4.26.0, 4.27.0, 4.28.0, and 4.28.1.

Las comprobaciones de límite insuficientes cuando se procesa una cadena en mb_ereg_replace permiten un acceso a la memoria fuera de límites. Este problema afecta HHVM versiones anteriores a la versión 3.30.12, todas las versiones entre 4.0.0 y 4.8.5, todas las versiones entre 4.9.0 y 4.23.1, así como las versiones 4.24.0, 4.25.0, 4.26.0, 4.27.0, 4.28.0 y 4.28.1.

*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

2019-05-13 CVE Reserved
2019-12-04 CVE Published
2023-10-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-125: Out-of-bounds Read

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/facebook/hhvm/commit/1c518555dba6ceb45d5ba61845b96e261219c3b7	2019-12-11

URL	Date	SRC
https://hhvm.com/blog/2019/10/28/security-update.html	2019-12-11
https://www.facebook.com/security/advisories/cve-2019-11935	2019-12-11

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"				< 3.30.12 Search vendor "Facebook" for product "Hhvm" and version " < 3.30.12"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				>= 4.0.0 <= 4.8.5 Search vendor "Facebook" for product "Hhvm" and version " >= 4.0.0 <= 4.8.5"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				>= 4.9.0 <= 4.23.1 Search vendor "Facebook" for product "Hhvm" and version " >= 4.9.0 <= 4.23.1"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				4.24.0 Search vendor "Facebook" for product "Hhvm" and version "4.24.0"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				4.25.0 Search vendor "Facebook" for product "Hhvm" and version "4.25.0"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				4.26.0 Search vendor "Facebook" for product "Hhvm" and version "4.26.0"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				4.27.0 Search vendor "Facebook" for product "Hhvm" and version "4.27.0"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				4.28.0 Search vendor "Facebook" for product "Hhvm" and version "4.28.0"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				4.28.1 Search vendor "Facebook" for product "Hhvm" and version "4.28.1"		-		Affected