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CVE-2021-38385

Date: August 29, 2021

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.

Severity Score

7.5

Related Resources (9)

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-38385

Url: https://blog.torproject.org

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-38385

Url: https://blog.torproject.org/node/2062

Url: https://security.alpinelinux.org/vuln/CVE-2021-38385

Url: https://bugs.torproject.org/tpo/core/tor/40078

Url: https://security.gentoo.org/glsa/202305-11

Url: https://security-tracker.debian.org/tracker/CVE-2021-38385

Url: https://www.mend.io/vulnerability-database/CVE-2021-38385

Severity Score

7.5

Weakness Type (CWE)

Reachable Assertion

CWE-617

CVSS v3.1

Base Score:	7.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	5.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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