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CVE-2020-24659

CVE-2020-24659

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.5 · High · EPSS 3.8% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • gnutls28 Debian:12

    Affected ranges
    • ECOSYSTEM: < 3.6.15-1

    Update to 3.6.15-1

  • gnutls28 Debian:13

    Affected ranges
    • ECOSYSTEM: < 3.6.15-1

    Update to 3.6.15-1

  • gnutls28 Debian:14

    Affected ranges
    • ECOSYSTEM: < 3.6.15-1

    Update to 3.6.15-1

  • gnutls28 Ubuntu:20.04:LTS

    Versions
    • 3.6.9-5ubuntu1
    • 3.6.9-5ubuntu2
    • 3.6.10-5
    • 3.6.11.1-2
    • 3.6.11.1-2ubuntu2
    • 3.6.13-2ubuntu1
    • 3.6.13-2ubuntu1.1
    • 3.6.13-2ubuntu1.2
    Affected ranges
    • ECOSYSTEM: < 3.6.13-2ubuntu1.3

    Update to 3.6.13-2ubuntu1.3

Original sources

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