CVE-2020-15572

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Tor before 0.4.3.6 has an out-of-bounds memory access that allows a remote denial-of-service (crash) attack against Tor instances built to use Mozilla Network Security Services (NSS), aka TROVE-2020-001.

Tor versiones anteriores a 0.4.3.6, presenta un acceso de la memoria fuera de límites que permite un ataque de denegación de servicio remoto (bloqueo) contra instancias de Tor creadas para usar Mozilla Network Security Services (NSS), también se conoce como TROVE-2020-001

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-07-06 CVE Reserved
2020-07-09 CVE Published
2024-05-19 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://blog.torproject.org/new-release-tor-03511-0428-0436-security-fixes	2021-07-21
https://gitlab.torproject.org/tpo/core/tor/-/issues/33119	2021-07-21
https://trac.torproject.org/projects/tor/wiki/TROVE	2021-07-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				< 0.3.5.11 Search vendor "Torproject" for product "Tor" and version " < 0.3.5.11"		-		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				> 0.4.2.0 < 0.4.2.8 Search vendor "Torproject" for product "Tor" and version " > 0.4.2.0 < 0.4.2.8"		-		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				> 0.4.3.0 < 0.4.3.6 Search vendor "Torproject" for product "Tor" and version " > 0.4.3.0 < 0.4.3.6"		-		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				0.4.4.0 Search vendor "Torproject" for product "Tor" and version "0.4.4.0"		alpha		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				0.4.4.1 Search vendor "Torproject" for product "Tor" and version "0.4.4.1"		alpha		Affected