CVE-2017-0380

Description

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.44%
Vendor Advisory debian.org Vendor Advisory torproject.org
Affected: n/a Tor before 0.3.1.7
Published at:
Updated at:

References

Link Tags
https://trac.torproject.org/projects/tor/ticket/23490 patch vendor advisory mitigation
https://github.com/torproject/tor/commit/09ea89764a4d3a907808ed7d4fe42abfe64bd486 third party advisory patch
http://www.securitytracker.com/id/1039519 vdb entry
http://www.debian.org/security/2017/dsa-3993 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-0380?
CVE-2017-0380 has been scored as a medium severity vulnerability.
How to fix CVE-2017-0380?
To fix CVE-2017-0380, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-0380 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-0380 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-0380?
CVE-2017-0380 affects n/a Tor before 0.3.1.7.
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