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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-39246 Detail

Description

Tor Browser through 10.5.6 and 11.x through 11.0a4 allows a correlation attack that can compromise the privacy of visits to v2 onion addresses. Exact timestamps of these onion-service visits are logged locally, and an attacker might be able to compare them to timestamp data collected by the destination server (or collected by a rogue site within the Tor network).


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-111.md Exploit  Third Party Advisory 
https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-111.md Exploit  Third Party Advisory 
https://gitlab.torproject.org/tpo/core/tor/-/commit/80c404c4b79f3bcba3fc4585d4c62a62a04f3ed9 Patch  Vendor Advisory 
https://gitlab.torproject.org/tpo/core/tor/-/commit/80c404c4b79f3bcba3fc4585d4c62a62a04f3ed9 Patch  Vendor Advisory 
https://gitlab.torproject.org/tpo/core/tor/-/merge_requests/434 Vendor Advisory 
https://gitlab.torproject.org/tpo/core/tor/-/merge_requests/434 Vendor Advisory 
https://sick.codes/sick-2021-111 Exploit  Third Party Advisory 
https://sick.codes/sick-2021-111 Exploit  Third Party Advisory 
https://www.privacyaffairs.com/cve-2021-39246-tor-vulnerability Third Party Advisory 
https://www.privacyaffairs.com/cve-2021-39246-tor-vulnerability Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-532 Insertion of Sensitive Information into Log File cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-39246
NVD Published Date:
09/24/2021
NVD Last Modified:
11/21/2024
Source:
MITRE