CVE-2019-3570

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Call to the scrypt_enc() function in HHVM can lead to heap corruption by using specifically crafted parameters (N, r and p). This happens if the parameters are configurable by an attacker for instance by providing the output of scrypt_enc() in a context where Hack/PHP code would attempt to verify it by re-running scrypt_enc() with the same parameters. This could result in information disclosure, memory being overwriten or crashes of the HHVM process. This issue affects versions 4.3.0, 4.4.0, 4.5.0, 4.6.0, 4.7.0, 4.8.0, versions 3.30.5 and below, and all versions in the 4.0, 4.1, and 4.2 series.

La llamada a la función scrypt_enc () en HHVM puede provocar daños en el montón mediante el uso de parámetros específicamente diseñados (N, r y p). Esto sucede si los parámetros son configurables por un atacante, por ejemplo, proporcionando la salida de scrypt_enc () en un contexto donde el código Hack / PHP intentaría verificarlo volviendo a ejecutar scrypt_enc () con los mismos parámetros. Esto podría dar lugar a la divulgación de información, la sobrescritura de memoria o el bloqueo del proceso HHVM. Este problema afecta a las versiones 4.3.0, 4.4.0, 4.5.0, 4.6.0, 4.7.0, 4.8.0, versiones 3.30.5 y anteriores, y todas las versiones de las series 4.0, 4.1 y 4.2.

*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

2019-01-02 CVE Reserved
2019-07-18 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-122: Heap-based Buffer Overflow
CWE-787: Out-of-bounds Write

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/facebook/hhvm/commit/cc331e4349e91706a673e2a09f1f2ea5bbb33815	2020-10-16

URL	Date	SRC
https://hhvm.com/blog/2019/06/10/hhvm-4.9.0.html	2020-10-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Facebook Search vendor "Facebook"		Hiphop Virtual Machine Search vendor "Facebook" for product "Hiphop Virtual Machine"				<= 3.30.5 Search vendor "Facebook" for product "Hiphop Virtual Machine" and version " <= 3.30.5"		-		Affected
Facebook Search vendor "Facebook"		Hiphop Virtual Machine Search vendor "Facebook" for product "Hiphop Virtual Machine"				>= 4.0.0 <= 4.0.4 Search vendor "Facebook" for product "Hiphop Virtual Machine" and version " >= 4.0.0 <= 4.0.4"		-		Affected
Facebook Search vendor "Facebook"		Hiphop Virtual Machine Search vendor "Facebook" for product "Hiphop Virtual Machine"				4.1.0 Search vendor "Facebook" for product "Hiphop Virtual Machine" and version "4.1.0"		-		Affected
Facebook Search vendor "Facebook"		Hiphop Virtual Machine Search vendor "Facebook" for product "Hiphop Virtual Machine"				4.2.0 Search vendor "Facebook" for product "Hiphop Virtual Machine" and version "4.2.0"		-		Affected
Facebook Search vendor "Facebook"		Hiphop Virtual Machine Search vendor "Facebook" for product "Hiphop Virtual Machine"				4.3.0 Search vendor "Facebook" for product "Hiphop Virtual Machine" and version "4.3.0"		-		Affected
Facebook Search vendor "Facebook"		Hiphop Virtual Machine Search vendor "Facebook" for product "Hiphop Virtual Machine"				4.4.0 Search vendor "Facebook" for product "Hiphop Virtual Machine" and version "4.4.0"		-		Affected
Facebook Search vendor "Facebook"		Hiphop Virtual Machine Search vendor "Facebook" for product "Hiphop Virtual Machine"				4.5.0 Search vendor "Facebook" for product "Hiphop Virtual Machine" and version "4.5.0"		-		Affected
Facebook Search vendor "Facebook"		Hiphop Virtual Machine Search vendor "Facebook" for product "Hiphop Virtual Machine"				4.6.0 Search vendor "Facebook" for product "Hiphop Virtual Machine" and version "4.6.0"		-		Affected
Facebook Search vendor "Facebook"		Hiphop Virtual Machine Search vendor "Facebook" for product "Hiphop Virtual Machine"				4.7.0 Search vendor "Facebook" for product "Hiphop Virtual Machine" and version "4.7.0"		-		Affected
Facebook Search vendor "Facebook"		Hiphop Virtual Machine Search vendor "Facebook" for product "Hiphop Virtual Machine"				4.8.0 Search vendor "Facebook" for product "Hiphop Virtual Machine" and version "4.8.0"		-		Affected