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CVE-2023-25725

CVE-2023-25725

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

HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in some situations, aka "request smuggling." The HTTP header parsers in HAProxy may accept empty header field names, which could be used to truncate the list of HTTP headers and thus make some headers disappear after being parsed and processed for HTTP/1.0 and HTTP/1.1. For HTTP/2 and HTTP/3, the impact is limited because the headers disappear before being parsed and processed, as if they had not been sent by the client. The fixed versions are 2.7.3, 2.6.9, 2.5.12, 2.4.22, 2.2.29, and 2.0.31.

CVSS 9.1 · Critical · EPSS 5.4% · Fix available

Published
Updated

Stack: system · web

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • haproxy Debian:12

    Affected ranges
    • ECOSYSTEM: < 2.6.8-2

    Update to 2.6.8-2

  • haproxy Debian:13

    Affected ranges
    • ECOSYSTEM: < 2.6.8-2

    Update to 2.6.8-2

  • haproxy Debian:14

    Affected ranges
    • ECOSYSTEM: < 2.6.8-2

    Update to 2.6.8-2

  • haproxy Ubuntu:Pro:16.04:LTS

    Versions
    • 1.5.14-1
    • 1.5.15-1
    • 1.6.2-1
    • 1.6.2-2
    • 1.6.2-2ubuntu1
    • 1.6.2-2ubuntu3
    • 1.6.3-1
    • 1.6.3-1ubuntu0.1
    • 1.6.3-1ubuntu0.2
    • 1.6.3-1ubuntu0.3
    • 1.6.3-1ubuntu0.3+esm1
    Affected ranges
    • ECOSYSTEM: < 1.6.3-1ubuntu0.3+esm2

    Update to 1.6.3-1ubuntu0.3+esm2

  • haproxy Ubuntu:18.04:LTS

    Versions
    • 1.7.9-1ubuntu1
    • 1.7.9-1ubuntu2
    • 1.8.4-1
    • 1.8.7-1
    • 1.8.8-1
    • 1.8.8-1ubuntu0.1
    • 1.8.8-1ubuntu0.2
    • 1.8.8-1ubuntu0.3
    • 1.8.8-1ubuntu0.4
    • 1.8.8-1ubuntu0.6
    • 1.8.8-1ubuntu0.7
    • 1.8.8-1ubuntu0.8
    • 1.8.8-1ubuntu0.9
    • 1.8.8-1ubuntu0.10
    • 1.8.8-1ubuntu0.11
    Affected ranges
    • ECOSYSTEM: < 1.8.8-1ubuntu0.13

    Update to 1.8.8-1ubuntu0.13

  • haproxy Ubuntu:20.04:LTS

    Versions
    • 2.0.5-1
    • 2.0.8-1
    • 2.0.9-1
    • 2.0.10-1
    • 2.0.10-1ubuntu1
    • 2.0.11-1ubuntu1
    • 2.0.12-1ubuntu2
    • 2.0.13-1ubuntu2
    • 2.0.13-2
    • 2.0.13-2ubuntu0.1
    • 2.0.13-2ubuntu0.2
    • 2.0.13-2ubuntu0.3
    • 2.0.13-2ubuntu0.5
    • 2.0.29-0ubuntu1
    • 2.0.29-0ubuntu1.1
    Affected ranges
    • ECOSYSTEM: < 2.0.29-0ubuntu1.3

    Update to 2.0.29-0ubuntu1.3

  • 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
    Affected ranges
    • ECOSYSTEM: < 2.4.18-0ubuntu1.2

    Update to 2.4.18-0ubuntu1.2

Original sources

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