CVE-2023-25725

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.

Affected Software

Name	Vendor	Start Version	End Version
Haproxy	Haproxy	*	2.0.31 (excluding)
Haproxy	Haproxy	2.1.0 (including)	2.2.29 (excluding)
Haproxy	Haproxy	2.3.0 (including)	2.4.22 (excluding)
Haproxy	Haproxy	2.5.0 (including)	2.5.12 (excluding)
Haproxy	Haproxy	2.6.0 (including)	2.6.9 (excluding)
Haproxy	Haproxy	2.7.0 (including)	2.7.3 (excluding)
Red Hat Ceph Storage 5.3	RedHat	rhceph/rhceph-haproxy-rhel8:2.2.19-32	*
Red Hat Enterprise Linux 9	RedHat	haproxy-0:2.4.17-3.el9_1.2	*
Red Hat Enterprise Linux 9.0 Extended Update Support	RedHat	haproxy-0:2.4.7-2.el9_0.2	*
Red Hat OpenShift Container Platform 4.10	RedHat	haproxy-0:2.2.19-4.el8	*
Red Hat OpenShift Container Platform 4.11	RedHat	haproxy-0:2.2.24-3.rhaos4.11.el8	*
Red Hat OpenShift Container Platform 4.12	RedHat	haproxy-0:2.2.24-3.rhaos4.12.el8	*
Red Hat OpenShift Container Platform 4.13	RedHat	haproxy-0:2.2.24-3.rhaos4.13.el8	*
Haproxy	Ubuntu	bionic	*
Haproxy	Ubuntu	devel	*
Haproxy	Ubuntu	esm-infra/bionic	*
Haproxy	Ubuntu	esm-infra/focal	*
Haproxy	Ubuntu	esm-infra/xenial	*
Haproxy	Ubuntu	focal	*
Haproxy	Ubuntu	jammy	*
Haproxy	Ubuntu	kinetic	*
Haproxy	Ubuntu	lunar	*
Haproxy	Ubuntu	mantic	*
Haproxy	Ubuntu	noble	*
Haproxy	Ubuntu	oracular	*
Haproxy	Ubuntu	trusty	*
Haproxy	Ubuntu	xenial	*

NVD	https://nvd.nist.gov/vuln/detail/CVE-2023-25725
CWE	https://cwe.mitre.org/data/definitions/NVD-Other.html

Affected Software

References