FKIE_CVE-2015-2666

Vulnerability from fkie_nvd - Published: 2015-05-27 10:59 - Updated: 2026-06-17 00:24
Severity
Summary
Stack-based buffer overflow in the get_matching_model_microcode function in arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0 allows context-dependent attackers to gain privileges by constructing a crafted microcode header and leveraging root privileges for write access to the initrd.
References
cve@mitre.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4Broken Link
cve@mitre.orghttp://lists.fedoraproject.org/pipermail/package-announce/2015-March/153329.htmlThird Party Advisory
cve@mitre.orghttp://rhn.redhat.com/errata/RHSA-2015-1534.htmlThird Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2015/03/20/18Mailing List
cve@mitre.orghttp://www.securitytracker.com/id/1032414Third Party Advisory, VDB Entry
cve@mitre.orghttps://bugzilla.redhat.com/show_bug.cgi?id=1204722Issue Tracking
cve@mitre.orghttps://github.com/torvalds/linux/commit/f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4Patch
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4Broken Link
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153329.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2015-1534.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2015/03/20/18Mailing List
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1032414Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1204722Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4Patch

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stack-based buffer overflow in the get_matching_model_microcode function in arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0 allows context-dependent attackers to gain privileges by constructing a crafted microcode header and leveraging root privileges for write access to the initrd."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de buffer basado en pila en la funci\u00f3n get_matching_model_microcode en arch/x86/kernel/cpu/microcode/intel_early.c en el kernel de Linux anterior a 4.0 permite a atacantes dependientes de contexto ganar privilegios mediante la construcci\u00f3n de una cabecera de microc\u00f3digo manipulada y el aprovechamiento de privilegios root para acceso de escritura al initrd."
    }
  ],
  "id": "CVE-2015-2666",
  "lastModified": "2026-06-17T00:24:31.457",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 6.9,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2015-05-27T10:59:04.813",
  "references": [
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      "tags": [
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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