MitreCVE-2021-39246CVE-2021-39246
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
50.0%
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).
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| torproject | tor_browser | * | cpe:2.3:a:torproject:tor_browser:*:*:*:*:*:*:*:* |
| torproject | tor_browser | 11.0 | cpe:2.3:a:torproject:tor_browser:11.0:alpha2:*:*:*:*:*:* |
| torproject | tor_browser | 11.0 | cpe:2.3:a:torproject:tor_browser:11.0:alpha4:*:*:*:*:*:* |
| apple | macos | - | cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* |
| linux | linux_kernel | - | cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
| microsoft | windows | - | cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* |
Related
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
50.0%