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CVE-2017-3733

CVE-2017-3733 · Encrypt-Then-Mac renegotiation crash

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

During a renegotiation handshake if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake (or vice-versa) then this can cause OpenSSL 1.1.0 before 1.1.0e to crash (dependent on ciphersuite). Both clients and servers are affected.

CVSS 7.5 · High · EPSS 12.9% · 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
    • openssl-1.1.0d: Affected

    No fix published

  • openssl Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.1.0e-1

    Update to 1.1.0e-1

  • openssl Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.1.0e-1

    Update to 1.1.0e-1

  • openssl Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.1.0e-1

    Update to 1.1.0e-1

Original sources

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