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nvd[email protected]NVD:CVE-2023-0836
HistoryMar 29, 2023 - 9:15 p.m.

CVE-2023-0836

2023-03-2921:15:07
CWE-200
CWE-459
web.nvd.nist.gov
haproxy
information leak
vulnerability
fastcgi
data disclosure

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

7.4 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.4%

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

NVD
Node
haproxyhaproxyRange2.2.02.2.27
OR
haproxyhaproxyRange2.4.02.4.21
OR
haproxyhaproxyRange2.5.02.5.11
OR
haproxyhaproxyRange2.6.02.6.8
OR
haproxyhaproxyMatch2.1.0
OR
haproxyhaproxyMatch2.3.0
OR
haproxyhaproxyMatch2.7.0

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

7.4 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.4%