CVE Vulnerabilities

CVE-2021-39240

Published: Aug 17, 2021 | Modified: Nov 07, 2023
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Ubuntu
MEDIUM

An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It does not ensure that the scheme and path portions of a URI have the expected characters. For example, the authority field (as observed on a target HTTP/2 server) might differ from what the routing rules were intended to achieve.

Affected Software

Name Vendor Start Version End Version
Haproxy Haproxy 2.2.0 (including) 2.2.16 (excluding)
Haproxy Haproxy 2.3.0 (including) 2.3.13 (excluding)
Haproxy Haproxy 2.4.0 (including) 2.4.3 (excluding)
Red Hat OpenShift Container Platform 4.8 RedHat haproxy-0:2.2.13-2.el8 *
Red Hat OpenShift Container Platform 4.9 RedHat haproxy-0:2.2.15-2.el8 *
Haproxy Ubuntu devel *
Haproxy Ubuntu hirsute *
Haproxy Ubuntu impish *
Haproxy Ubuntu jammy *
Haproxy Ubuntu trusty *
Haproxy Ubuntu xenial *

References