gsd-2016-2853
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2016-2853",
"description": "The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.",
"id": "GSD-2016-2853",
"references": [
"https://www.suse.com/security/cve/CVE-2016-2853.html",
"https://ubuntu.com/security/CVE-2016-2853",
"https://packetstormsecurity.com/files/cve/CVE-2016-2853"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2016-2853"
],
"details": "The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.",
"id": "GSD-2016-2853",
"modified": "2023-12-13T01:21:19.639269Z",
"schema_version": "1.4.0"
}
},
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"STATE": "PUBLIC"
},
"affects": {
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"product": {
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"product_name": "n/a",
"version": {
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"version_value": "n/a"
}
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}
}
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}
]
}
},
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"data_type": "CVE",
"data_version": "4.0",
"description": {
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{
"lang": "eng",
"value": "The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program."
}
]
},
"problemtype": {
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{
"name": "96839",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/96839"
},
{
"name": "http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/",
"refsource": "MISC",
"url": "http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/"
},
{
"name": "[oss-security] 20160224 Aufs Union Filesystem Privilege Escalation In User Namespaces",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2016/02/24/9"
},
{
"name": "[aufs] 20160219 aufs3 and aufs4 GIT release",
"refsource": "MLIST",
"url": "https://sourceforge.net/p/aufs/mailman/message/34864744/"
},
{
"name": "[oss-security] 20211018 Re: CVE-2021-3847: OverlayFS - Potential Privilege Escalation using overlays copy_up",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2021/10/18/1"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
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"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "3.19.8",
"versionStartIncluding": "3.0.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "4.20.15",
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"description": {
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"value": "The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program."
}
]
},
"problemtype": {
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}
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"url": "http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/"
},
{
"name": "[oss-security] 20160224 Aufs Union Filesystem Privilege Escalation In User Namespaces",
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},
{
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},
{
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"tags": [
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],
"url": "http://www.securityfocus.com/bid/96839"
},
{
"name": "[oss-security] 20211018 Re: CVE-2021-3847: OverlayFS - Potential Privilege Escalation using overlays copy_up",
"refsource": "MLIST",
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"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2021/10/18/1"
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},
"impact": {
"baseMetricV2": {
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.4,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.4,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"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"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
},
"lastModifiedDate": "2022-04-18T17:59Z",
"publishedDate": "2016-05-02T10:59Z"
}
}
}
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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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