[3.6] tor: Stack disclosure in hidden services logs when SafeLogging disabled (CVE-2017-0380)
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.
Fixed In Version:
tor 0.2.8.15, tor 0.2.9.12, tor 0.3.0.11, tor 0.3.1.7, tor 0.3.2.1-alpha
References:
https://trac.torproject.org/projects/tor/ticket/23490
https://nvd.nist.gov/vuln/detail/CVE-2017-0380
Patch:
https://github.com/torproject/tor/commit/09ea89764a4d3a907808ed7d4fe42abfe64bd486
(from redmine: issue id 7989, created on 2017-10-10, closed on 2017-10-17)
- Changesets:
- Revision 93ed1f72 by Francesco Colista on 2017-10-10T15:24:10Z:
community/tor: security fix (CVE-2017-0380). Fixes #7989