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CVE-2023-0836

CVE-2023-0836

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

An information leak vulnerability was discovered in HAProxy 2.1, 2.2 before 2.2.27, 2.3, 2.4 before 2.4.21, 2.5 before 2.5.11, 2.6 before 2.6.8, 2.7 before 2.7.1. There are 5 bytes left uninitialized in the connection buffer when encoding the FCGI_BEGIN_REQUEST record. Sensitive data may be disclosed to configured FastCGI backends in an unexpected way.

CVSS 7.5 · High · EPSS 1.2% · Fix available

Published
Updated

Stack: system · web

Affected products and versions

  • haproxy

    Versions
    • HAProxy 2.8, HAProxy 2.7.1, HAProxy 2.6.8, HAProxy 2.5.11, HAProxy 2.4.21, HAProxy 2.2.27: Affected

    No fix published

  • haproxy Debian:12

    Affected ranges
    • ECOSYSTEM: < 2.6.8-1

    Update to 2.6.8-1

  • haproxy Debian:13

    Affected ranges
    • ECOSYSTEM: < 2.6.8-1

    Update to 2.6.8-1

  • haproxy Debian:14

    Affected ranges
    • ECOSYSTEM: < 2.6.8-1

    Update to 2.6.8-1

  • haproxy Ubuntu:22.04:LTS

    Versions
    • 2.2.9-2ubuntu2
    • 2.4.8-1
    • 2.4.8-2ubuntu3
    • 2.4.11-1ubuntu1
    • 2.4.12-1ubuntu1
    • 2.4.12-1ubuntu2
    • 2.4.13-1ubuntu1
    • 2.4.14-1ubuntu1
    • 2.4.18-0ubuntu1
    • 2.4.18-0ubuntu1.1
    • 2.4.18-0ubuntu1.2
    Affected ranges
    • ECOSYSTEM: < 2.4.18-0ubuntu1.3

    Update to 2.4.18-0ubuntu1.3

Original sources

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