CVE-2022-0711

HIGH
7.5
CVSS Score
Published: March 2, 2022 at 09:59 PM UTC
Updated: June 17, 2026 at 04:21 AM UTC
5 products affected across 3 vendorsDebian LinuxEnterprise LinuxOpenShift Container Platform

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Severity
HIGH7.5
Exploit prediction
EPSS 17%

Description

A flaw was found in the way HAProxy processed HTTP responses containing the "Set-Cookie2" header. This flaw could allow an attacker to send crafted HTTP response packets which lead to an infinite loop, eventually resulting in a denial of service condition. The highest threat from this vulnerability is availability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.2.0 ≤ v < 2.2.212.3.0 ≤ v < 2.3.182.4.0 ≤ v < 2.4.132.5.1
Affected range stops below 2.2.21, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.3.18, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.4.13, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-835

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