CVE-2021-38385 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://blog.torproject.org/node/2062 https://blog.torproject.org https://bugs.torproject.org/tpo/core/tor/40078

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5