Information Exposure Affecting tor package, versions [,0.3.0.9)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.37% (73rd percentile)

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  • Snyk IDSNYK-UNMANAGED-TOR-2371325
  • published26 Jan 2022
  • disclosed2 Jul 2017
  • creditUnknown

Introduced: 2 Jul 2017

CVE-2017-0377  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade tor to version 0.3.0.9 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure. Tor 0.3.x before 0.3.0.9 has a guard-selection algorithm that only considers the exit relay (not the exit relay's family), which might allow remote attackers to defeat intended anonymity properties by leveraging the existence of large families.

CVSS Scores

version 3.1