CVE-2021-40346

2021-09-0700:00:00

ubuntu.com

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

0.031 Low

EPSS

Percentile

90.9%

JSON

An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header
that can be exploited to perform an HTTP request smuggling attack, allowing
an attacker to bypass all configured http-request HAProxy ACLs and possibly
other ACLs.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchhaproxy< 2.0.13-2ubuntu0.3UNKNOWN
ubuntu21.04noarchhaproxy< 2.2.9-1ubuntu0.2UNKNOWN
ubuntu21.10noarchhaproxy< 2.2.9-2ubuntu2UNKNOWN
ubuntu22.04noarchhaproxy< 2.2.9-2ubuntu2UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	haproxy	< 2.0.13-2ubuntu0.3	UNKNOWN
ubuntu	21.04	noarch	haproxy	< 2.2.9-1ubuntu0.2	UNKNOWN
ubuntu	21.10	noarch	haproxy	< 2.2.9-2ubuntu2	UNKNOWN
ubuntu	22.04	noarch	haproxy	< 2.2.9-2ubuntu2	UNKNOWN