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    Mageia 2020-0379: gnutls security update

    Date
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    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 (CVE-2020-24659).
    MGASA-2020-0379 - Updated gnutls packages fix security vulnerability
    
    Publication date: 30 Sep 2020
    URL: https://advisories.mageia.org/MGASA-2020-0379.html
    Type: security
    Affected Mageia releases: 7
    CVE: CVE-2020-24659
    
    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 (CVE-2020-24659).
    
    References:
    - https://bugs.mageia.org/show_bug.cgi?id=27257
    - https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04
    - https://lists.gnupg.org/pipermail/gnutls-help/2020-September/004669.html
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24659
    
    SRPMS:
    - 7/core/gnutls-3.6.15-1.mga7
    

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