msrc_cve-2022-37436
Vulnerability from csaf_microsoft
Published
2023-01-04 00:00
Modified
2025-05-15 00:00
Summary
Apache HTTP Server: mod_proxy prior to 2.4.55 allows a backend to trigger HTTP response splitting
Notes
Additional Resources
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer
The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
{
"document": {
"category": "csaf_vex",
"csaf_version": "2.0",
"distribution": {
"text": "Public",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en-US",
"notes": [
{
"category": "general",
"text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
"title": "Additional Resources"
},
{
"category": "legal_disclaimer",
"text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
"title": "Disclaimer"
}
],
"publisher": {
"category": "vendor",
"contact_details": "secure@microsoft.com",
"name": "Microsoft Security Response Center",
"namespace": "https://msrc.microsoft.com"
},
"references": [
{
"category": "self",
"summary": "CVE-2022-37436 Apache HTTP Server: mod_proxy prior to 2.4.55 allows a backend to trigger HTTP response splitting - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2022-37436.json"
},
{
"category": "external",
"summary": "Microsoft Support Lifecycle",
"url": "https://support.microsoft.com/lifecycle"
},
{
"category": "external",
"summary": "Common Vulnerability Scoring System",
"url": "https://www.first.org/cvss"
}
],
"title": "Apache HTTP Server: mod_proxy prior to 2.4.55 allows a backend to trigger HTTP response splitting",
"tracking": {
"current_release_date": "2025-05-15T00:00:00.000Z",
"generator": {
"date": "2025-10-20T00:11:59.020Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
}
},
"id": "msrc_CVE-2022-37436",
"initial_release_date": "2023-01-04T00:00:00.000Z",
"revision_history": [
{
"date": "2023-02-02T00:00:00.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
},
{
"date": "2025-05-15T00:00:00.000Z",
"legacy_version": "1.1",
"number": "2",
"summary": "Added mod_http2 to Azure Linux 3.0\nAdded httpd to CBL-Mariner 1.0\nAdded httpd to CBL-Mariner 2.0"
}
],
"status": "final",
"version": "2"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version",
"name": "1.0",
"product": {
"name": "CBL Mariner 1.0",
"product_id": "16820"
}
},
{
"category": "product_version",
"name": "2.0",
"product": {
"name": "CBL Mariner 2.0",
"product_id": "17086"
}
},
{
"category": "product_version",
"name": "3.0",
"product": {
"name": "Azure Linux 3.0",
"product_id": "17084"
}
}
],
"category": "product_name",
"name": "Azure Linux"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003ccm1 httpd 2.4.55-1",
"product": {
"name": "\u003ccm1 httpd 2.4.55-1",
"product_id": "2"
}
},
{
"category": "product_version",
"name": "cm1 httpd 2.4.55-1",
"product": {
"name": "cm1 httpd 2.4.55-1",
"product_id": "18470"
}
},
{
"category": "product_version_range",
"name": "\u003ccbl2 httpd 2.4.55-1",
"product": {
"name": "\u003ccbl2 httpd 2.4.55-1",
"product_id": "1"
}
},
{
"category": "product_version",
"name": "cbl2 httpd 2.4.55-1",
"product": {
"name": "cbl2 httpd 2.4.55-1",
"product_id": "18471"
}
}
],
"category": "product_name",
"name": "httpd"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003cazl3 mod_http2 2.0.29-3",
"product": {
"name": "\u003cazl3 mod_http2 2.0.29-3",
"product_id": "3"
}
},
{
"category": "product_version",
"name": "azl3 mod_http2 2.0.29-3",
"product": {
"name": "azl3 mod_http2 2.0.29-3",
"product_id": "17683"
}
}
],
"category": "product_name",
"name": "mod_http2"
}
],
"category": "vendor",
"name": "Microsoft"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003ccm1 httpd 2.4.55-1 as a component of CBL Mariner 1.0",
"product_id": "16820-2"
},
"product_reference": "2",
"relates_to_product_reference": "16820"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "cm1 httpd 2.4.55-1 as a component of CBL Mariner 1.0",
"product_id": "18470-16820"
},
"product_reference": "18470",
"relates_to_product_reference": "16820"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003ccbl2 httpd 2.4.55-1 as a component of CBL Mariner 2.0",
"product_id": "17086-1"
},
"product_reference": "1",
"relates_to_product_reference": "17086"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "cbl2 httpd 2.4.55-1 as a component of CBL Mariner 2.0",
"product_id": "18471-17086"
},
"product_reference": "18471",
"relates_to_product_reference": "17086"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003cazl3 mod_http2 2.0.29-3 as a component of Azure Linux 3.0",
"product_id": "17084-3"
},
"product_reference": "3",
"relates_to_product_reference": "17084"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "azl3 mod_http2 2.0.29-3 as a component of Azure Linux 3.0",
"product_id": "17683-17084"
},
"product_reference": "17683",
"relates_to_product_reference": "17084"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2022-37436",
"cwe": {
"id": "CWE-113",
"name": "Improper Neutralization of CRLF Sequences in HTTP Headers (\u0026#39;HTTP Request/Response Splitting\u0026#39;)"
},
"notes": [
{
"category": "general",
"text": "apache",
"title": "Assigning CNA"
}
],
"product_status": {
"fixed": [
"18470-16820",
"18471-17086",
"17683-17084"
],
"known_affected": [
"16820-2",
"17086-1",
"17084-3"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2022-37436 Apache HTTP Server: mod_proxy prior to 2.4.55 allows a backend to trigger HTTP response splitting - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2022-37436.json"
}
],
"remediations": [
{
"category": "vendor_fix",
"date": "2023-02-02T00:00:00.000Z",
"details": "2.4.55-1:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
"product_ids": [
"16820-2",
"17086-1"
],
"url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
},
{
"category": "vendor_fix",
"date": "2023-02-02T00:00:00.000Z",
"details": "2.0.29-3:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
"product_ids": [
"17084-3"
],
"url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"environmentalsScore": 0.0,
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"temporalScore": 5.3,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"products": [
"16820-2",
"17086-1",
"17084-3"
]
}
],
"title": "Apache HTTP Server: mod_proxy prior to 2.4.55 allows a backend to trigger HTTP response splitting"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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