fkie_cve-2012-2123
Vulnerability from fkie_nvd
Published
2012-05-17 11:00
Modified
2025-04-11 00:51
Severity ?
Summary
The cap_bprm_set_creds function in security/commoncap.c in the Linux kernel before 3.3.3 does not properly handle the use of file system capabilities (aka fcaps) for implementing a privileged executable file, which allows local users to bypass intended personality restrictions via a crafted application, as demonstrated by an attack that uses a parent process to disable ASLR.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "78E044CC-A7B5-4457-9CE9-C1B6A2151C9C",
"versionEndExcluding": "3.0.29",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "1BC85A39-2EFC-4468-9C66-7455CD4EF690",
"versionEndExcluding": "3.2.16",
"versionStartIncluding": "3.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "77EDD976-8BC1-491C-A240-34C0BA4AC31D",
"versionEndExcluding": "3.3.3",
"versionStartIncluding": "3.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The cap_bprm_set_creds function in security/commoncap.c in the Linux kernel before 3.3.3 does not properly handle the use of file system capabilities (aka fcaps) for implementing a privileged executable file, which allows local users to bypass intended personality restrictions via a crafted application, as demonstrated by an attack that uses a parent process to disable ASLR."
},
{
"lang": "es",
"value": "La funci\u00f3n cap_bprm_set_creds en security/commoncap.c en el n\u00facleo de Linux antes de v3.3.3 no controla correctamente el uso de las capacidades del sistema de archivos (FCAPS aka) para la implementaci\u00f3n de un archivo ejecutable con privilegios, lo cual permite a usuarios locales eludir las restricciones personales a trav\u00e9s de una aplicaci\u00f3n manipulada, como se demuestra por un ataque que utiliza un proceso padre para desactivar ASLR."
}
],
"id": "CVE-2012-2123",
"lastModified": "2025-04-11T00:51:21.963",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.2,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2012-05-17T11:00:38.367",
"references": [
{
"source": "secalert@redhat.com",
"tags": [
"Broken Link"
],
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445"
},
{
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"tags": [
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],
"url": "http://rhn.redhat.com/errata/RHSA-2012-0670.html"
},
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},
{
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"url": "http://www.debian.org/security/2012/dsa-2469"
},
{
"source": "secalert@redhat.com",
"tags": [
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],
"url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3"
},
{
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"tags": [
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"url": "http://www.openwall.com/lists/oss-security/2012/04/20/6"
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{
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"tags": [
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"url": "http://www.securityfocus.com/bid/53166"
},
{
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],
"url": "http://www.securitytracker.com/id?1027072"
},
{
"source": "secalert@redhat.com",
"tags": [
"Issue Tracking"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=806722"
},
{
"source": "secalert@redhat.com",
"tags": [
"VDB Entry"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/75043"
},
{
"source": "secalert@redhat.com",
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],
"url": "https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "http://rhn.redhat.com/errata/RHSA-2012-0670.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "http://rhn.redhat.com/errata/RHSA-2012-0743.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "http://www.debian.org/security/2012/dsa-2469"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2012/04/20/6"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/53166"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "http://www.securitytracker.com/id?1027072"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"VDB Entry"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/75043"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-264"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.
- 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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