Red Hat Security Advisory 2020-1998-01 - The gnutls packages provide the GNU Transport Layer Security library, which implements cryptographic algorithms and protocols such as SSL, TLS, and DTLS. An issue was addressed where the DTLS client hello contains a random value of all zeroes.
a76cfe9755fa657d22ec409de56c6ef6f3fbbe850e5e053d372b23dfd9784e2fDebian Linux Security Advisory 4652-1 - A flaw was reported in the DTLS protocol implementation in GnuTLS, a library implementing the TLS and SSL protocols. The DTLS client would not contribute any randomness to the DTLS negotiation, breaking the security guarantees of the DTLS protocol.
bd5dd42b9957180f46e511abd5eb5521011266cfa67e4ddbac33c829c40d72b7Ubuntu Security Notice 4322-1 - It was discovered that GnuTLS incorrectly handled randomness when performing DTLS negotiation. A remote attacker could possibly use this issue to obtain sensitive information, contrary to expectations.
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