Medium severity · published Sep 18, 2017
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…
5.9
CVSS
1.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TO
Tor · Torproject
through 0.2.8.14; 0.2.9.0; 0.2.9.0; 0.2.9.1; 0.2.9.2; 0.2.9.3; +25 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-0380
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-0380
www.debian.org
http://www.debian.org/security/2017/dsa-3993
www.securitytracker.com
http://www.securitytracker.com/id/1039519
Patch
https://github.com/torproject/tor/commit/09ea89764a4d3a907808ed7d4fe42abfe64bd486
Mitigation
https://trac.torproject.org/projects/tor/ticket/23490
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