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CVE-2018-0735

CVE-2018-0735 · Timing attack against ECDSA signature generation

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

The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.1.1a (Affected 1.1.1).

CVSS 5.9 · Medium · EPSS 4.7% · Fix available

Published
Updated

Stack: system · network

Affected products and versions

  • openssl

    Versions
    • Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i): Affected
    • Fixed in OpenSSL 1.1.1a (Affected 1.1.1): Affected

    No fix published

  • openssl Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.1.1a-1

    Update to 1.1.1a-1

  • openssl Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.1.1a-1

    Update to 1.1.1a-1

  • openssl Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.1.1a-1

    Update to 1.1.1a-1

  • openssl Ubuntu:18.04:LTS

    Versions
    • 1.0.2g-1ubuntu13
    • 1.0.2g-1ubuntu14
    • 1.0.2n-1ubuntu1
    • 1.1.0g-2ubuntu1
    • 1.1.0g-2ubuntu2
    • 1.1.0g-2ubuntu3
    • 1.1.0g-2ubuntu4
    • 1.1.0g-2ubuntu4.1
    Affected ranges
    • ECOSYSTEM: < 1.1.0g-2ubuntu4.3

    Update to 1.1.0g-2ubuntu4.3

Original sources

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