CVEvulnerability

CVE-2023-0836

7.5 HIGH Published 2023-03-29 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-03-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-200, CWE-459

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 configurations

• haproxy haproxy (>= 2.2.0 < 2.2.27) • haproxy haproxy (>= 2.4.0 <= 2.4.21) • haproxy haproxy (>= 2.5.0 <= 2.5.11) • haproxy haproxy (>= 2.6.0 <= 2.6.8) • haproxy haproxy 2.1.0 • haproxy haproxy 2.3.0 • haproxy haproxy 2.7.0

Related

Weakness · CWE (2)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
  • CWE-459 Incomplete Cleanup weakness

References