Vulnerability in Briarproject Briar
CVE-2023-33982
Bramble Handshake Protocol (BHP) in Briar before 1.5.3 is not forward secure: eavesdroppers can decrypt network traffic between two accounts if they later compromise both accounts. NOTE: the eavesdropping is typically impractical because BHP runs over an encrypted session that uses the Tor hidden service protocol.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (37.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- briarproject.org/news/2023-three-security-issues-found-and-fixed/ (Vendor Advisory)
- ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/educat… (Technical Description, Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-33982?
- CVE-2023-33982 is a medium-severity vulnerability in Briarproject Briar, classified under Inadequate Encryption Strength. CVSS score: 5.9/10. Published 2023-05-24.
- How severe is CVE-2023-33982?
- Medium severity. CVSS v3 base score is 5.9 out of 10.