SB2011122305 - Information disclosure in tor.eff Tor
Published: December 23, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011122305
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information disclosure (CVE-ID: CVE-2011-4897)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
Tor before 0.2.2.25-alpha, when configured as a relay without the Nickname configuration option, uses the local hostname as the Nickname value, which allows remote attackers to obtain potentially sensitive information by reading this value.
Remediation
Install update from vendor's website.