CVE-2017-0380
First published: Mon Sep 18 2017(Updated: )
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.
Credit: security@debian.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Tor Project Tor | <=0.2.8.14 | |
| Tor Project Tor | =0.2.9.0 | |
| Tor Project Tor | =0.2.9.0-alpha | |
| Tor Project Tor | =0.2.9.1-alpha | |
| Tor Project Tor | =0.2.9.2-alpha | |
| Tor Project Tor | =0.2.9.3-alpha | |
| Tor Project Tor | =0.2.9.4-alpha | |
| Tor Project Tor | =0.2.9.5-alpha | |
| Tor Project Tor | =0.2.9.6 | |
| Tor Project Tor | =0.2.9.8 | |
| Tor Project Tor | =0.2.9.9 | |
| Tor Project Tor | =0.2.9.10 | |
| Tor Project Tor | =0.2.9.11 | |
| Tor Project Tor | =0.3.0.0 | |
| Tor Project Tor | =0.3.0.1-alpha | |
| Tor Project Tor | =0.3.0.2-alpha | |
| Tor Project Tor | =0.3.0.3-alpha | |
| Tor Project Tor | =0.3.0.4-rc | |
| Tor Project Tor | =0.3.0.5-rc | |
| Tor Project Tor | =0.3.0.6 | |
| Tor Project Tor | =0.3.0.7 | |
| Tor Project Tor | =0.3.0.8 | |
| Tor Project Tor | =0.3.0.9 | |
| Tor Project Tor | =0.3.0.10 | |
| Tor Project Tor | =0.3.1.1-alpha | |
| Tor Project Tor | =0.3.1.2-alpha | |
| Tor Project Tor | =0.3.1.3-alpha | |
| Tor Project Tor | =0.3.1.4-alpha | |
| Tor Project Tor | =0.3.1.5-alpha | |
| Tor Project Tor | =0.3.1.6-alpha | |
| Tor Project Tor | =0.3.2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-0380?
The severity of CVE-2017-0380 is classified as medium, as it may allow attackers to obtain sensitive information under certain conditions.
How do I fix CVE-2017-0380?
To fix CVE-2017-0380, upgrade to a patched version of Tor, specifically 0.2.8.15 or later, or 0.3.1.7 or later.
What software versions are affected by CVE-2017-0380?
CVE-2017-0380 affects Tor versions before 0.2.8.15, 0.2.9.x before 0.2.9.12, and low versions of 0.3.x up to 0.3.2.1-alpha.
Can CVE-2017-0380 be exploited remotely?
Yes, CVE-2017-0380 could potentially be exploited remotely if SafeLogging is disabled.
What type of vulnerability is CVE-2017-0380?
CVE-2017-0380 is an information disclosure vulnerability in the Tor service.
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- agent/software-canonical-lookup-request
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- version/tor project tor/0.2.8.14
- version/tor project tor/0.2.9.0
- version/tor project tor/0.2.9.0-alpha
- version/tor project tor/0.2.9.1-alpha
- version/tor project tor/0.2.9.2-alpha
- version/tor project tor/0.2.9.3-alpha
- version/tor project tor/0.2.9.4-alpha
- version/tor project tor/0.2.9.5-alpha
- version/tor project tor/0.2.9.6
- version/tor project tor/0.2.9.8
- version/tor project tor/0.2.9.9
- version/tor project tor/0.2.9.10
- version/tor project tor/0.2.9.11
- version/tor project tor/0.3.0.0
- version/tor project tor/0.3.0.1-alpha
- version/tor project tor/0.3.0.2-alpha
- version/tor project tor/0.3.0.3-alpha
- version/tor project tor/0.3.0.4-rc
- version/tor project tor/0.3.0.5-rc
- version/tor project tor/0.3.0.6
- version/tor project tor/0.3.0.7
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- version/tor project tor/0.3.0.9
- version/tor project tor/0.3.0.10
- version/tor project tor/0.3.1.1-alpha
- version/tor project tor/0.3.1.2-alpha
- version/tor project tor/0.3.1.3-alpha
- version/tor project tor/0.3.1.4-alpha
- version/tor project tor/0.3.1.5-alpha
- version/tor project tor/0.3.1.6-alpha
- version/tor project tor/0.3.2