Denial of Service Vulnerability in HAProxy by HAProxy Technologies
CVE-2022-0711

7.5HIGH

Key Information:

Vendor

Haproxy

Status
Haproxy
Vendor
CVE Published:
2 March 2022

What is CVE-2022-0711?

A flaw exists in HAProxy's processing of HTTP responses containing the 'Set-Cookie2' header, which can be exploited by attackers. By sending specially crafted HTTP response packets, an attacker may create an infinite loop within the application, leading to a denial of service condition. This vulnerability impacts the availability of the service, necessitating immediate attention and potential patches to mitigate risks.

Affected Version(s)

haproxy 2.5.1

References

https://access.redhat.com/security/cve/cve-2022-0711
x_refsource_MISC
https://www.mail-archive.com/haproxy%40formilux.org/msg41...
x_refsource_MISC
https://github.com/haproxy/haproxy/commit/bfb15ab34ead85f...
x_refsource_MISC

EPSS Score

14% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.