vulnerability
FreeBSD: VID-D887B3D9-7366-11EA-B81A-001CC0382B2F (CVE-2020-11501): GnuTLS -- flaw in DTLS protocol implementation
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:P/I:P/A:N) | 2020-03-31 | 2020-06-05 | 2020-06-05 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
2020-03-31
Added
2020-06-05
Modified
2020-06-05
Description
GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol.
Solution
freebsd-upgrade-package-gnutls
References
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