CVE-2023-25725 Affecting haproxy package, versions <2.6.8-2


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.26% (66th percentile)

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  • Snyk IDSNYK-DEBIAN12-HAPROXY-3319771
  • published15 Feb 2023
  • disclosed14 Feb 2023

Introduced: 14 Feb 2023

CVE-2023-25725  (opens in a new tab)

How to fix?

Upgrade Debian:12 haproxy to version 2.6.8-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream haproxy package and not the haproxy package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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 Scores

version 3.1