CVE-2017-0377

Tor 0.3.x before 0.3.0.9 has a guard-selection algorithm that only considers the exit relay (not the exit relay's family), which might allow remote attackers to defeat intended anonymity properties by leveraging the existence of large families.

Score

CVSS 3.0 7.5 High

Status

Modified - security@debian.org

Published

2017-07-02

Last modified

2024-08-05

Weaknesses

CWE-200

Affected products

• Tor (Torproject)

References

• https://blog.torproject.org/blog/tor-0309-released-security-update-clients
• https://blog.torproject.org/blog/tor-0314-alpha-released-security-update-clients
• https://github.com/torproject/tor/commit/665baf5ed5c6186d973c46cdea165c0548027350
• https://security-tracker.debian.org/CVE-2017-0377
• https://trac.torproject.org/projects/tor/ticket/22753