CVE-2020-11501
- State
- Published
- Severity
- Not scored
- Published
- Apr 3, 2020
- Updated
- Oct 14, 2026
- Reserved
- Apr 3, 2020
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- GLSA-202004-06vendor-advisory
- https://gitlab.com/gnutls/gnutls/-/issues/960
- https://gitlab.com/gnutls/gnutls/-/commit/5b595e8e52653f6c5726a4cdd8fddeb6e83804d2
- https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31
- DSA-4652vendor-advisory
- openSUSE-SU-2020:0501vendor-advisory
- https://security.netapp.com/advisory/ntap-20200416-0002/
- USN-4322-1vendor-advisory
- FEDORA-2020-f90fb78f70vendor-advisory
- FEDORA-2020-d14280a6e8vendor-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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