National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-8822 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 3.7 LOW
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N (V3 legend)
Impact Score: 1.4
Exploitability Score: 2.2


Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516 Vendor Advisory
https://bugs.torproject.org/21534 Issue Tracking Vendor Advisory
https://bugs.torproject.org/24333 Vendor Advisory
https://www.debian.org/security/2017/dsa-4054 Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Channel and Path Errors (CWE-417)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
0.2.5.16
 cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
0.2.6
Up to (excluding)
0.2.8.17
 cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
0.2.9
Up to (excluding)
0.2.9.14
 cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
0.3.0
Up to (excluding)
0.3.0.13
 cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
0.3.1
Up to (excluding)
0.3.1.9

Configuration 2 ( hide )
 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-8822
NVD Published Date:
12/03/2017
NVD Last Modified:
12/21/2017