CVE-2021-39246
- State
- Published
- Severity
- Not scored
- Published
- Sep 24, 2021
- Updated
- Aug 4, 2024
- Reserved
- Aug 17, 2021
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).
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-111.md
- https://sick.codes/sick-2021-111
- https://www.privacyaffairs.com/cve-2021-39246-tor-vulnerability
- https://gitlab.torproject.org/tpo/core/tor/-/commit/80c404c4b79f3bcba3fc4585d4c62a62a04f3ed9
- https://gitlab.torproject.org/tpo/core/tor/-/merge_requests/434
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