GnuTLS 3.6.x prior to 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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
gnu gnutls |
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debian debian linux 10.0 |
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opensuse leap 15.1 |
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canonical ubuntu linux 19.10 |
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fedoraproject fedora 31 |
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fedoraproject fedora 32 |
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