FKIE_CVE-2014-7155

Vulnerability from fkie_nvd - Published: 2014-10-02 14:55 - Updated: 2025-04-12 10:46
Severity ?
Summary
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.
References
cve@mitre.orghttp://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.htmlThird Party Advisory
cve@mitre.orghttp://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.htmlThird Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.htmlThird Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.htmlThird Party Advisory
cve@mitre.orghttp://secunia.com/advisories/61858
cve@mitre.orghttp://secunia.com/advisories/61890
cve@mitre.orghttp://security.gentoo.org/glsa/glsa-201412-42.xml
cve@mitre.orghttp://support.citrix.com/article/CTX200218Third Party Advisory
cve@mitre.orghttp://www.debian.org/security/2014/dsa-3041Third Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/70057Third Party Advisory, VDB Entry
cve@mitre.orghttp://www.securitytracker.com/id/1030888Third Party Advisory, VDB Entry
cve@mitre.orghttp://xenbits.xen.org/xsa/advisory-105.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/61858
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/61890
af854a3a-2127-422b-91ae-364da2661108http://security.gentoo.org/glsa/glsa-201412-42.xml
af854a3a-2127-422b-91ae-364da2661108http://support.citrix.com/article/CTX200218Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2014/dsa-3041Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/70057Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1030888Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://xenbits.xen.org/xsa/advisory-105.htmlPatch, Vendor Advisory
Impacted products
Vendor Product Version
xen xen *
xen xen 3.0.2
xen xen 3.0.3
xen xen 3.0.4
xen xen 3.1.3
xen xen 3.1.4
xen xen 3.2.0
xen xen 3.2.1
xen xen 3.2.2
xen xen 3.2.3
xen xen 3.3.0
xen xen 3.3.1
xen xen 3.3.2
xen xen 3.4.0
xen xen 3.4.1
xen xen 3.4.2
xen xen 3.4.3
xen xen 3.4.4
xen xen 4.0.0
xen xen 4.0.1
xen xen 4.0.2
xen xen 4.0.3
xen xen 4.0.4
xen xen 4.1.0
xen xen 4.1.1
xen xen 4.1.2
xen xen 4.1.3
xen xen 4.1.4
xen xen 4.1.5
xen xen 4.1.6.1
xen xen 4.2.0
xen xen 4.2.1
xen xen 4.2.2
xen xen 4.2.3
xen xen 4.3.0
xen xen 4.3.1
xen xen 4.4.0
xen xen 4.4.0
debian debian_linux 7.0
fedoraproject fedora 19
fedoraproject fedora 20
opensuse opensuse 12.3
opensuse opensuse 13.1
To clipboard 

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  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction."
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  "id": "CVE-2014-7155",
  "lastModified": "2025-04-12T10:46:40.837",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
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        "exploitabilityScore": 6.5,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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  "published": "2014-10-02T14:55:05.120",
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  "vulnStatus": "Deferred",
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          "value": "CWE-264"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.