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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.

🗓️ 09 Sep 2020 07:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

GnuTLS DTLS client uses 32 null bytes instead of random before 3.6.13, weakening security.

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09 Sep 2020 07:00Current
7High risk
Vulners AI Score7
CVSS 25.8
CVSS 3.17.4
EPSS0.11487
1