gsd-2014-8989
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a "negative groups" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2014-8989",
"description": "The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a \"negative groups\" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c.",
"id": "GSD-2014-8989",
"references": [
"https://www.suse.com/security/cve/CVE-2014-8989.html",
"https://ubuntu.com/security/CVE-2014-8989",
"https://advisories.mageia.org/CVE-2014-8989.html",
"https://alas.aws.amazon.com/cve/html/CVE-2014-8989.html",
"https://linux.oracle.com/cve/CVE-2014-8989.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2014-8989"
],
"details": "The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a \"negative groups\" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c.",
"id": "GSD-2014-8989",
"modified": "2023-12-13T01:22:49.284417Z",
"schema_version": "1.4.0"
}
},
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"affects": {
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{
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"value": "The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a \"negative groups\" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c."
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{
"name": "FEDORA-2015-0517",
"refsource": "FEDORA",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.html"
},
{
"name": "USN-2515-1",
"refsource": "UBUNTU",
"url": "http://www.ubuntu.com/usn/USN-2515-1"
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{
"name": "71154",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/71154"
},
{
"name": "USN-2518-1",
"refsource": "UBUNTU",
"url": "http://www.ubuntu.com/usn/USN-2518-1"
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{
"name": "MDVSA-2015:058",
"refsource": "MANDRIVA",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:058"
},
{
"name": "FEDORA-2015-0515",
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"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.html"
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{
"name": "http://thread.gmane.org/gmane.linux.man/7385/",
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{
"name": "[oss-security] 20141120 Re: Linux user namespaces can bypass group-based restrictions - Linux kernel",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2014/11/20/4"
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],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2014-8989"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a \"negative groups\" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-264"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "http://thread.gmane.org/gmane.linux.man/7385/",
"refsource": "CONFIRM",
"tags": [
"Exploit"
],
"url": "http://thread.gmane.org/gmane.linux.man/7385/"
},
{
"name": "[oss-security] 20141120 Re: Linux user namespaces can bypass group-based restrictions - Linux kernel",
"refsource": "MLIST",
"tags": [],
"url": "http://www.openwall.com/lists/oss-security/2014/11/20/4"
},
{
"name": "USN-2518-1",
"refsource": "UBUNTU",
"tags": [],
"url": "http://www.ubuntu.com/usn/USN-2518-1"
},
{
"name": "USN-2515-1",
"refsource": "UBUNTU",
"tags": [],
"url": "http://www.ubuntu.com/usn/USN-2515-1"
},
{
"name": "USN-2516-1",
"refsource": "UBUNTU",
"tags": [],
"url": "http://www.ubuntu.com/usn/USN-2516-1"
},
{
"name": "USN-2517-1",
"refsource": "UBUNTU",
"tags": [],
"url": "http://www.ubuntu.com/usn/USN-2517-1"
},
{
"name": "MDVSA-2015:058",
"refsource": "MANDRIVA",
"tags": [],
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:058"
},
{
"name": "FEDORA-2015-0515",
"refsource": "FEDORA",
"tags": [],
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.html"
},
{
"name": "FEDORA-2015-0517",
"refsource": "FEDORA",
"tags": [],
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.html"
},
{
"name": "71154",
"refsource": "BID",
"tags": [],
"url": "http://www.securityfocus.com/bid/71154"
}
]
}
},
"impact": {
"baseMetricV2": {
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.6,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": true,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
}
},
"lastModifiedDate": "2017-01-03T02:59Z",
"publishedDate": "2014-11-30T01:59Z"
}
}
}
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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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