msrc_cve-2018-10906
Vulnerability from csaf_microsoft
Published
2018-07-02 00:00
Modified
2024-06-30 07:00
Summary
In fuse before versions 2.9.8 and 3.x before 3.2.5 fusermount is vulnerable to a restriction bypass when SELinux is active. This allows non-root users to mount a FUSE file system with the 'allow_other' mount option regardless of whether 'user_allow_other' is set in the fuse configuration. An attacker may use this flaw to mount a FUSE file system accessible by other users and trick them into accessing files on that file system possibly causing Denial of Service or other unspecified effects.
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-2018-10906 In fuse before versions 2.9.8 and 3.x before 3.2.5 fusermount is vulnerable to a restriction bypass when SELinux is active. This allows non-root users to mount a FUSE file system with the \u0027allow_other\u0027 mount option regardless of whether \u0027user_allow_other\u0027 is set in the fuse configuration. An attacker may use this flaw to mount a FUSE file system accessible by other users and trick them into accessing files on that file system possibly causing Denial of Service or other unspecified effects. - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2018/msrc_cve-2018-10906.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": "In fuse before versions 2.9.8 and 3.x before 3.2.5 fusermount is vulnerable to a restriction bypass when SELinux is active. This allows non-root users to mount a FUSE file system with the \u0027allow_other\u0027 mount option regardless of whether \u0027user_allow_other\u0027 is set in the fuse configuration. An attacker may use this flaw to mount a FUSE file system accessible by other users and trick them into accessing files on that file system possibly causing Denial of Service or other unspecified effects.",
"tracking": {
"current_release_date": "2024-06-30T07:00:00.000Z",
"generator": {
"date": "2025-10-19T17:20:26.323Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
}
},
"id": "msrc_CVE-2018-10906",
"initial_release_date": "2018-07-02T00:00:00.000Z",
"revision_history": [
{
"date": "2020-08-18T00:00:00.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
},
{
"date": "2021-12-16T00:00:00.000Z",
"legacy_version": "1.1",
"number": "2",
"summary": "Added fuse to CBL-Mariner 2.0"
},
{
"date": "2024-06-30T07:00:00.000Z",
"legacy_version": "1.2",
"number": "3",
"summary": "Information published."
}
],
"status": "final",
"version": "3"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version",
"name": "3.0",
"product": {
"name": "Azure Linux 3.0",
"product_id": "17084"
}
},
{
"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": "16817"
}
}
],
"category": "product_name",
"name": "Azure Linux"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003cazl3 fuse 2.9.7-10",
"product": {
"name": "\u003cazl3 fuse 2.9.7-10",
"product_id": "1"
}
},
{
"category": "product_version",
"name": "azl3 fuse 2.9.7-10",
"product": {
"name": "azl3 fuse 2.9.7-10",
"product_id": "16937"
}
},
{
"category": "product_version_range",
"name": "\u003ccm1 fuse 2.9.7-7",
"product": {
"name": "\u003ccm1 fuse 2.9.7-7",
"product_id": "4"
}
},
{
"category": "product_version",
"name": "cm1 fuse 2.9.7-7",
"product": {
"name": "cm1 fuse 2.9.7-7",
"product_id": "16935"
}
},
{
"category": "product_version_range",
"name": "\u003ccbl2 fuse 2.9.7-10",
"product": {
"name": "\u003ccbl2 fuse 2.9.7-10",
"product_id": "3"
}
},
{
"category": "product_version",
"name": "cbl2 fuse 2.9.7-10",
"product": {
"name": "cbl2 fuse 2.9.7-10",
"product_id": "16936"
}
},
{
"category": "product_version_range",
"name": "\u003cazl3 fuse 2.9.7-10",
"product": {
"name": "\u003cazl3 fuse 2.9.7-10",
"product_id": "2"
}
},
{
"category": "product_version",
"name": "azl3 fuse 2.9.7-10",
"product": {
"name": "azl3 fuse 2.9.7-10",
"product_id": "16937"
}
}
],
"category": "product_name",
"name": "fuse"
}
],
"category": "vendor",
"name": "Microsoft"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003cazl3 fuse 2.9.7-10 as a component of Azure Linux 3.0",
"product_id": "17084-1"
},
"product_reference": "1",
"relates_to_product_reference": "17084"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "azl3 fuse 2.9.7-10 as a component of Azure Linux 3.0",
"product_id": "16937-17084"
},
"product_reference": "16937",
"relates_to_product_reference": "17084"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003ccm1 fuse 2.9.7-7 as a component of CBL Mariner 1.0",
"product_id": "16820-4"
},
"product_reference": "4",
"relates_to_product_reference": "16820"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "cm1 fuse 2.9.7-7 as a component of CBL Mariner 1.0",
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},
"product_reference": "16935",
"relates_to_product_reference": "16820"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003ccbl2 fuse 2.9.7-10 as a component of CBL Mariner 2.0",
"product_id": "17086-3"
},
"product_reference": "3",
"relates_to_product_reference": "17086"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "cbl2 fuse 2.9.7-10 as a component of CBL Mariner 2.0",
"product_id": "16936-17086"
},
"product_reference": "16936",
"relates_to_product_reference": "17086"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003cazl3 fuse 2.9.7-10 as a component of Azure Linux 3.0",
"product_id": "16817-2"
},
"product_reference": "2",
"relates_to_product_reference": "16817"
},
{
"category": "default_component_of",
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]
},
"vulnerabilities": [
{
"cve": "CVE-2018-10906",
"cwe": {
"id": "CWE-269",
"name": "Improper Privilege Management"
},
"notes": [
{
"category": "general",
"text": "redhat",
"title": "Assigning CNA"
}
],
"product_status": {
"fixed": [
"16937-17084",
"16935-16820",
"16936-17086",
"16937-16817"
],
"known_affected": [
"17084-1",
"16820-4",
"17086-3",
"16817-2"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2018-10906 In fuse before versions 2.9.8 and 3.x before 3.2.5 fusermount is vulnerable to a restriction bypass when SELinux is active. This allows non-root users to mount a FUSE file system with the \u0027allow_other\u0027 mount option regardless of whether \u0027user_allow_other\u0027 is set in the fuse configuration. An attacker may use this flaw to mount a FUSE file system accessible by other users and trick them into accessing files on that file system possibly causing Denial of Service or other unspecified effects. - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2018/msrc_cve-2018-10906.json"
}
],
"remediations": [
{
"category": "vendor_fix",
"date": "2020-08-18T00:00:00.000Z",
"details": "2.9.7-10:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
"product_ids": [
"17084-1",
"17086-3",
"16817-2"
],
"url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
},
{
"category": "vendor_fix",
"date": "2020-08-18T00:00:00.000Z",
"details": "2.9.7-7:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
"product_ids": [
"16820-4"
],
"url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"environmentalsScore": 0.0,
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"temporalScore": 7.8,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"17084-1",
"16820-4",
"17086-3",
"16817-2"
]
}
],
"title": "In fuse before versions 2.9.8 and 3.x before 3.2.5 fusermount is vulnerable to a restriction bypass when SELinux is active. This allows non-root users to mount a FUSE file system with the \u0027allow_other\u0027 mount option regardless of whether \u0027user_allow_other\u0027 is set in the fuse configuration. An attacker may use this flaw to mount a FUSE file system accessible by other users and trick them into accessing files on that file system possibly causing Denial of Service or other unspecified effects."
}
]
}
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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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