Information disclosure in Apple Macos
CVE-2021-39246
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).
EPSS: 0.005 (38.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Apple Macos
- Linux Linux_kernel
- Microsoft Windows
- Torproject Tor_browser — versions 11.0
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-39246?
- CVE-2021-39246 is a medium-severity vulnerability in Apple Macos, classified under Insertion of Sensitive Information into Log File. CVSS score: 6.1/10. Published 2021-09-24.
- How severe is CVE-2021-39246?
- Medium severity. CVSS v3 base score is 6.1 out of 10.