NetSight
high7.5

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…

Impact

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 products

VendorProductAffected versions
HaproxyHaproxy
from 2.2.0 before 2.2.27
from 2.4.0 through 2.4.21
from 2.5.0 through 2.5.11
from 2.6.0 through 2.6.8
Versions 2.1.0, 2.3.0

Weakness classification

References