CVE-2017-0380 Information

Description

The rend_service_intro_established function in or/rendservice.c in Tor before 0.2.8.15 0.2.9.x before 0.2.9.12 0.3.0.x before 0.3.0.11 0.3.1.x before 0.3.1.7 and 0.3.2.x before 0.3.2.1-alpha when SafeLogging is disabled allows attackers to obtain sensitive information by leveraging access to the log files of a hidden service because uninitialized stack data is included in an error message about construction of an introduction point circuit.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

http://www.debian.org/security/2017/dsa-3993 http://www.securitytracker.com/id/1039519 https://github.com/torproject/tor/commit/09ea89764a4d3a907808ed7d4fe42abfe64bd486 https://trac.torproject.org/projects/tor/ticket/23490

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.9