gsd-2009-1895
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to (1) conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr protection mechanism, or (3) defeat address space layout randomization (ASLR).
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2009-1895",
"description": "The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to (1) conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr protection mechanism, or (3) defeat address space layout randomization (ASLR).",
"id": "GSD-2009-1895",
"references": [
"https://www.suse.com/security/cve/CVE-2009-1895.html",
"https://www.debian.org/security/2009/dsa-1844",
"https://www.debian.org/security/2009/dsa-1845",
"https://access.redhat.com/errata/RHSA-2010:0079",
"https://access.redhat.com/errata/RHSA-2009:1550",
"https://access.redhat.com/errata/RHSA-2009:1540",
"https://access.redhat.com/errata/RHSA-2009:1438",
"https://access.redhat.com/errata/RHSA-2009:1193",
"https://linux.oracle.com/cve/CVE-2009-1895.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
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],
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"id": "GSD-2009-1895",
"modified": "2023-12-13T01:19:47.711404Z",
"schema_version": "1.4.0"
}
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},
"impact": {
"baseMetricV2": {
"cvssV2": {
"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,
"severity": "HIGH",
"userInteractionRequired": false
}
},
"lastModifiedDate": "2023-02-13T02:20Z",
"publishedDate": "2009-07-16T15:30Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.