Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2017-8822

Published: 3 December 2017

In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, relays (that have incompletely downloaded descriptors) can pick themselves in a circuit path, leading to a degradation of anonymity, aka TROVE-2017-012.

From the Ubuntu Security Team

It was discovered that Tor could make itself part of a circuit path resulting in degraded anonymity.

Priority

Low

Cvss 3 Severity Score

3.7

Score breakdown

Status

Package Release Status
tor
Launchpad, Ubuntu, Debian
artful
Released (0.3.0.13-0ubuntu1~17.10.2)
bionic Not vulnerable
(0.3.1.9-1)
cosmic Not vulnerable
(0.3.1.9-1)
trusty
Released (0.2.4.27-1ubuntu0.1)
upstream
Released (0.2.9.14-1, 0.3.1.9-1)
xenial
Released (0.2.9.14-1ubuntu1~16.04.2)
zesty Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 3.7
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N