Description

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.

Related CPE's

a

haproxy

haproxy

6

References

https://cwe.mitre.org/data/definitions/436.html

Technical Description

https://github.com/haproxy/haproxy/commit/6492f1f29d738457ea9f382aca54537f35f9d856

Patch

https://github.com/haproxy/haproxy/issues/2237

ExploitIssue TrackingVendor Advisory

https://www.haproxy.org/download/2.6/src/CHANGELOG

Release Notes

https://www.haproxy.org/download/2.7/src/CHANGELOG

Release Notes

https://www.haproxy.org/download/2.8/src/CHANGELOG

Release Notes

Weaknesses

[email protected]

Primary
CWE-444

CVSS impact metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

7.2 · High

  • CVSS V3.1

  • CVSS V3.0

  • CVSS V2.0

Information

Source identifier

[email protected]

Vulnerability status

Analyzed

Published

2023-08-10T21:15:10.743

1 year ago

Last modified

2023-08-18T20:03:17.290

1 year ago