CVE-2023-0836

HIGH7.5EPSS 0.01%

haproxy - security update

Published: 3/29/2023Modified: 3/9/2026
Also known as:DSA-5388-1DEBIAN-CVE-2023-0836

Description

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.

Affected packages (3)

  • Bitnami/haproxy>= 2.1.0, < 2.1.1, >= 2.2.0, < 2.2.27, >= 2.3.0, < 2.3.1, >= 2.4.0, < 2.4.22, >= 2.5.0, < 2.5.12, >= 2.6.0, < 2.6.9, >= 2.7.0, < 2.7.1
  • Debian/haproxyfrom 0, < 2.2.9-2+deb11u5
  • Debian/haproxyfrom 0, < 2.2.9-2+deb11u5

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1HIGH7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References (4)