CVE-2023-0836

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.

Score

CVSS 3.1 7.5 High

Status

Modified - secalert@redhat.com

Published

2023-03-29

Last modified

2025-02-18

Weaknesses

CWE-200, CWE-459

Affected products

• Haproxy (Haproxy)

References

• https://git.haproxy.org/?p=haproxy.git%3Ba=commitdiff%3Bh=2e6bf0a
• https://www.debian.org/security/2023/dsa-5388