msrc_cve-2022-1271
Vulnerability from csaf_microsoft
Published
2022-08-02 00:00
Modified
2022-09-08 00:00
Summary
An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example a crafted file name) this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote low privileged attacker to force zgrep to write arbitrary files on the system.
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/"
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"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-2022-1271 An arbitrary file write vulnerability was found in GNU gzip\u0027s zgrep utility. When zgrep is applied on the attacker\u0027s chosen file name (for example a crafted file name) this can overwrite an attacker\u0027s content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote low privileged attacker to force zgrep to write arbitrary files on the system. - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2022-1271.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": "An arbitrary file write vulnerability was found in GNU gzip\u0027s zgrep utility. When zgrep is applied on the attacker\u0027s chosen file name (for example a crafted file name) this can overwrite an attacker\u0027s content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote low privileged attacker to force zgrep to write arbitrary files on the system.",
"tracking": {
"current_release_date": "2022-09-08T00:00:00.000Z",
"generator": {
"date": "2025-10-19T23:51:07.179Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
}
},
"id": "msrc_CVE-2022-1271",
"initial_release_date": "2022-08-02T00:00:00.000Z",
"revision_history": [
{
"date": "2022-09-08T00:00:00.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
}
],
"status": "final",
"version": "1"
}
},
"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_name",
"name": "Azure Linux"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003ccm1 gzip 1.12-1",
"product": {
"name": "\u003ccm1 gzip 1.12-1",
"product_id": "2"
}
},
{
"category": "product_version",
"name": "cm1 gzip 1.12-1",
"product": {
"name": "cm1 gzip 1.12-1",
"product_id": "18632"
}
},
{
"category": "product_version_range",
"name": "\u003ccbl2 gzip 1.12-1",
"product": {
"name": "\u003ccbl2 gzip 1.12-1",
"product_id": "1"
}
},
{
"category": "product_version",
"name": "cbl2 gzip 1.12-1",
"product": {
"name": "cbl2 gzip 1.12-1",
"product_id": "18633"
}
}
],
"category": "product_name",
"name": "gzip"
}
],
"category": "vendor",
"name": "Microsoft"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003ccm1 gzip 1.12-1 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 gzip 1.12-1 as a component of CBL Mariner 1.0",
"product_id": "18632-16820"
},
"product_reference": "18632",
"relates_to_product_reference": "16820"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003ccbl2 gzip 1.12-1 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 gzip 1.12-1 as a component of CBL Mariner 2.0",
"product_id": "18633-17086"
},
"product_reference": "18633",
"relates_to_product_reference": "17086"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2022-1271",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
"notes": [
{
"category": "general",
"text": "redhat",
"title": "Assigning CNA"
}
],
"product_status": {
"fixed": [
"18632-16820",
"18633-17086"
],
"known_affected": [
"16820-2",
"17086-1"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2022-1271 An arbitrary file write vulnerability was found in GNU gzip\u0027s zgrep utility. When zgrep is applied on the attacker\u0027s chosen file name (for example a crafted file name) this can overwrite an attacker\u0027s content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote low privileged attacker to force zgrep to write arbitrary files on the system. - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2022-1271.json"
}
],
"remediations": [
{
"category": "vendor_fix",
"date": "2022-09-08T00:00:00.000Z",
"details": "1.12-1: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"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"environmentalsScore": 0.0,
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"temporalScore": 8.8,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"16820-2",
"17086-1"
]
}
],
"title": "An arbitrary file write vulnerability was found in GNU gzip\u0027s zgrep utility. When zgrep is applied on the attacker\u0027s chosen file name (for example a crafted file name) this can overwrite an attacker\u0027s content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote low privileged attacker to force zgrep to write arbitrary files on the system."
}
]
}
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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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