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CVE-2017-3730

CVE-2017-3730 · Bad (EC)DHE parameters cause a client crash

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

In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack.

CVSS 7.5 · High · EPSS 55.3% · Public exploit · Fix available

Published
Updated

Stack: system · network

Affected products and versions

  • openssl

    Versions
    • openssl-1.1.0: Affected
    • openssl-1.1.0a: Affected
    • openssl-1.1.0b: Affected
    • openssl-1.1.0c: Affected

    No fix published

  • openssl Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.1.0d-1

    Update to 1.1.0d-1

  • openssl Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.1.0d-1

    Update to 1.1.0d-1

  • openssl Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.1.0d-1

    Update to 1.1.0d-1

Original sources

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