CVE-2023-40225: High severity HAProxy HAProxy vulnerability

Published Aug 10, 2023
·
Updated

HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 forwards empty Content-Length headers, violating RFC 9110 section 8.6. In uncommon cases, an HTTP/1 server behind HAProxy may interpret the payload as an extra request.

Affected Software

15 affected componentsFixes available
ubuntu/haproxy<2.0.31-0ubuntu0.2
2.0.31-0ubuntu0.2
ubuntu/haproxy<2.4.22-0ubuntu0.22.04.2
2.4.22-0ubuntu0.22.04.2
ubuntu/haproxy<2.6.9-1ubuntu1.1
2.6.9-1ubuntu1.1
ubuntu/haproxy<2.6.15-1ubuntu1
2.6.15-1ubuntu1
ubuntu/haproxy<2.6.15-1, <2.6.15, <2.7.10, <2.8.2
2.6.15-12.6.152.7.102.8.2
redhat/haproxy<2.6.15
2.6.15
redhat/haproxy<2.7.10
2.7.10
redhat/haproxy<2.8.2
2.8.2
debian/haproxy
1.8.19-1+deb10u31.8.19-1+deb10u52.2.9-2+deb11u62.6.12-1+deb12u12.9.9-1
HAProxy HAProxy<=2.0.32
HAProxy HAProxy>=2.2.0<=2.2.30
HAProxy HAProxy>=2.4.0<=2.4.23
HAProxy HAProxy>=2.5.0<2.6.15
HAProxy HAProxy>=2.7.0<2.7.10
HAProxy HAProxy>=2.8.0<2.8.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/haproxy to a version that resolves this vulnerability.

    Fixed in 2.0.31-0ubuntu0.2
  2. Upgrade

    Upgrade ubuntu/haproxy to a version that resolves this vulnerability.

    Fixed in 2.4.22-0ubuntu0.22.04.2
  3. Upgrade

    Upgrade ubuntu/haproxy to a version that resolves this vulnerability.

    Fixed in 2.6.9-1ubuntu1.1
  4. Upgrade

    Upgrade ubuntu/haproxy to a version that resolves this vulnerability.

    Fixed in 2.6.15-1ubuntu1
  5. Upgrade

    Upgrade ubuntu/haproxy to a version that resolves this vulnerability.

    Fixed in 2.6.15-1Fixed in 2.6.15Fixed in 2.7.10Fixed in 2.8.2
  6. Upgrade

    Upgrade debian/haproxy to a version that resolves this vulnerability.

    Fixed in 1.8.19-1+deb10u3Fixed in 1.8.19-1+deb10u5Fixed in 2.2.9-2+deb11u6Fixed in 2.6.12-1+deb12u1Fixed in 2.9.9-1
  7. Upgrade

    Upgrade redhat/haproxy to a version that resolves this vulnerability.

    Fixed in 2.6.15
  8. Upgrade

    Upgrade redhat/haproxy to a version that resolves this vulnerability.

    Fixed in 2.7.10
  9. Upgrade

    Upgrade redhat/haproxy to a version that resolves this vulnerability.

    Fixed in 2.8.2
  10. Upgrade

    Upgrade haproxy to a version that resolves this vulnerability.

    Fixed in 2.8.2
  11. Configuration

    In the affected HAProxy frontend(s), reject requests with an empty Content-Length header by configuring: http-request deny if { hdr_len(content-length) 0 }.

    HAProxy frontend http-request deny if { hdr_len(content-length) 0 } = enabled

Event History

Aug 10, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Aug 11, 2023
Data Sourced
via Red Hat·12:29 PM
DescriptionSeverityAffected Software
Jan 12, 2024
Data Sourced
via Launchpad·12:24 AM
Description

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2023-40225?

The severity of CVE-2023-40225 is high, with a severity value of 7.2.

2

How does CVE-2023-40225 affect HAProxy?

CVE-2023-40225 affects HAProxy versions through 2.0.32, 2.1.x, 2.2.x, 2.3.x, 2.4.x, 2.5.x, 2.6.x, 2.7.x, 2.8.x, and 2.9.x.

3

What is the remedy for CVE-2023-40225?

The remedy for CVE-2023-40225 is to upgrade to HAProxy version 2.6.15 or higher.

4

Where can I find more information about CVE-2023-40225?

You can find more information about CVE-2023-40225 at the following references: [link1](https://cwe.mitre.org/data/definitions/436.html), [link2](https://github.com/haproxy/haproxy/commit/6492f1f29d738457ea9f382aca54537f35f9d856), [link3](https://github.com/haproxy/haproxy/issues/2237).

5

What is the CWE ID of CVE-2023-40225?

The CWE ID of CVE-2023-40225 is CWE-444.

Company

Resources

Contact

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