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
Link | Resource |
---|---|
https://gitlab.com/gnutls/gnutls/-/issues/1071 | Exploit Issue Tracking Third Party Advisory |
https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04 | Vendor Advisory |
https://security.gentoo.org/glsa/202009-01 | Third Party Advisory |
https://security.netapp.com/advisory/ntap-20200911-0006/ | Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/62BUAI4FQQLG6VTKRT7SUZPGJJ4NASQ3/ | Mailing List Third Party Advisory |
https://usn.ubuntu.com/4491-1/ | Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AWN56FDLQQXT2D2YHNI4TYH432TDMQ7N/ | Mailing List Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.html | Mailing List Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.html | Mailing List Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 4 (hide)
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Information
Published : 2020-09-04 08:15
Updated : 2023-02-27 07:30
NVD link : CVE-2020-24659
Mitre link : CVE-2020-24659
JSON object : View
Products Affected
canonical
- ubuntu_linux
gnu
- gnutls
fedoraproject
- fedora
opensuse
- leap