Bug 1493511 (CVE-2017-0380) - CVE-2017-0380 tor: Stack disclosure in hidden services logs when SafeLogging disabled
Summary: CVE-2017-0380 tor: Stack disclosure in hidden services logs when SafeLogging ...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2017-0380
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1493512 1493513
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-09-20 11:47 UTC by Andrej Nemec
Modified: 2020-11-05 10:32 UTC (History)
4 users (show)

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
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Environment:
Last Closed: 2019-06-08 03:25:53 UTC


Attachments (Terms of Use)

Description Andrej Nemec 2017-09-20 11:47:38 UTC
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

Comment 1 Andrej Nemec 2017-09-20 11:48:07 UTC
Created tor tracking bugs for this issue:

Affects: epel-all [bug 1493513]
Affects: fedora-all [bug 1493512]

Comment 2 Product Security DevOps Team 2019-06-08 03:25:53 UTC
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.


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