Name: CVE-2017-0377: Exposure of Sensitive Information to an Unauthorized Actor
Creator: Rapid7
Published: 2017-07-02T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2017-0377, CWE-200, CVSS 7.5, EPSS 0.02446

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 Details

CVSS 3.0 Base Score: 7.5
CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Jul 2, 2017
Freebsd	—	Upgrade torUpgrade tor-devel	Jul 1, 2017	Jun 30, 2017

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CVSS Details

Covered by Rapid7

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