PRIOn knowledge basePRION:CVE-2020-24659Null pointer dereference
An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application’s error handling path, where the gnutls_deinit function is called after detecting a handshake failure.
References
lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.html
lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.html
gitlab.com/gnutls/gnutls/-/issues/1071
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62BUAI4FQQLG6VTKRT7SUZPGJJ4NASQ3/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWN56FDLQQXT2D2YHNI4TYH432TDMQ7N/
security.gentoo.org/glsa/202009-01
security.netapp.com/advisory/ntap-20200911-0006/
usn.ubuntu.com/4491-1/
www.gnutls.org/security-new.html
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