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CVE-2018-0733

CVE-2018-0733 · Incorrect CRYPTO_memcmp on HP-UX PA-RISC

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

Because of an implementation bug the PA-RISC CRYPTO_memcmp function is effectively reduced to only comparing the least significant bit of each byte. This allows an attacker to forge messages that would be considered as authenticated in an amount of tries lower than that guaranteed by the security claims of the scheme. The module can only be compiled by the HP-UX assembler, so that only HP-UX PA-RISC targets are affected. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g).

CVSS 5.9 · Medium · EPSS 8.3% · Fix available

Published
Updated

Stack: system · network

Affected products and versions

  • openssl

    Versions
    • Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g): Affected

    No fix published

  • openssl Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.1.0h-1

    Update to 1.1.0h-1

  • openssl Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.1.0h-1

    Update to 1.1.0h-1

  • openssl Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.1.0h-1

    Update to 1.1.0h-1

Original sources

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