CVE-2022-0711

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.

Database specific

{
    "cwe_ids": [
        "CWE-835"
    ],
    "cna_assigner": "redhat",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/0xxx/CVE-2022-0711.json"
}

References

Affected packages

Git / github.com/haproxy/haproxy

Affected ranges

Type

GIT

Repo

https://github.com/haproxy/haproxy

Events

Introduced

6cbbecf09734aeb5fa8bb88f36f06a6f6d35e813

Fixed

09cc669afb35fa362c9e42ab42c85f21cbdecd9d

Fixed

bfb15ab34ead85f64cd6da0e9fb418c9cd14cee8

Database specific

{
    "cpe": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "2.4.0"
        },
        {
            "fixed": "2.4.13"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

2.*

2.5.1

v2.*

v2.4.0

v2.5-dev0

v2.5-dev1

v2.5-dev10

v2.5-dev11

v2.5-dev12

v2.5-dev13

v2.5-dev14

v2.5-dev15

v2.5-dev2

v2.5-dev3

v2.5-dev4

v2.5-dev5

v2.5-dev6

v2.5-dev7

v2.5-dev8

v2.5-dev9

v2.5.0

v2.6-dev0

v2.6-dev1

Database specific

vanir_signatures_modified

"2026-07-22T02:23:29Z"

vanir_signatures

[
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "337496346880649468093710429442135291026",
                "100471815415007832791994411618091627129",
                "319132254654960409829937430810655726392",
                "322735852155913190660686993841847730435"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/haproxy/haproxy/commit/bfb15ab34ead85f64cd6da0e9fb418c9cd14cee8",
        "id": "CVE-2022-0711-639036d4",
        "target": {
            "file": "src/http_ana.c"
        }
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 3914.0,
            "function_hash": "98329939681248038118576851848161614349"
        },
        "signature_version": "v1",
        "source": "https://github.com/haproxy/haproxy/commit/bfb15ab34ead85f64cd6da0e9fb418c9cd14cee8",
        "id": "CVE-2022-0711-b396e60b",
        "target": {
            "function": "http_manage_server_side_cookies",
            "file": "src/http_ana.c"
        }
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-0711.json"