Information Exposure Affecting haproxy package, versions <0:2.4.22-1.el9


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
1.2% (65th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ALMALINUX9-HAPROXY-6061016
  • published15 Nov 2023
  • disclosed7 Nov 2023

Introduced: 7 Nov 2023

CVE-2023-0836  (opens in a new tab)
CWE-200  (opens in a new tab)
CWE-459  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 haproxy to version 0:2.4.22-1.el9 or higher.
This issue was patched in ALSA-2023:6496.

NVD Description

Note: Versions mentioned in the description apply only to the upstream haproxy package and not the haproxy package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

An information leak vulnerability was discovered in HAProxy 2.1, 2.2 before 2.2.27, 2.3, 2.4 before 2.4.21, 2.5 before 2.5.11, 2.6 before 2.6.8, 2.7 before 2.7.1. There are 5 bytes left uninitialized in the connection buffer when encoding the FCGI_BEGIN_REQUEST record. Sensitive data may be disclosed to configured FastCGI backends in an unexpected way.

CVSS Base Scores

version 3.1