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. Upstream patch: https://github.com/torproject/tor/commit/09ea89764a4d3a907808ed7d4fe42abfe64bd486 Upstream issue: https://trac.torproject.org/projects/tor/ticket/23490 References: https://blog.torproject.org/new-tor-stable-releases-02815-02912-03011-fix-onion-service-security-issue
Created tor tracking bugs for this issue: Affects: epel-all [bug 1493513] Affects: fedora-all [bug 1493512]
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.