CVE-2021-38385

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 0.3.5.16, 0.4.5.10, and 0.4.6.7 mishandles the relationship between batch-signature verification and single-signature verification, leading to a remote assertion failure, aka TROVE-2021-007.

Tor versiones anteriores a 0.3.5.16, 0.4.5.10, y 0.4.6.7, maneja inapropiadamente la relación entre la verificación de firma por lotes y la verificación de firma única, conllevando a un fallo de aserción remota, también se conoce como TROVE-2021-007.

*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

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-10 CVE Reserved
2021-08-17 CVE Published
2024-05-15 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-617: Reachable Assertion

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC
https://bugs.torproject.org/tpo/core/tor/40078	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://blog.torproject.org	2023-05-03
https://blog.torproject.org/node/2062	2023-05-03
https://security.gentoo.org/glsa/202305-11	2023-05-03

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"				< 0.3.5.16 Search vendor "Torproject" for product "Tor" and version " < 0.3.5.16"		-		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				>= 0.4.0.0 < 0.4.5.10 Search vendor "Torproject" for product "Tor" and version " >= 0.4.0.0 < 0.4.5.10"		-		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				>= 0.4.6.0 < 0.4.6.7 Search vendor "Torproject" for product "Tor" and version " >= 0.4.6.0 < 0.4.6.7"		-		Affected