CVE-2011-2527 (GCVE-0-2011-2527)

Vulnerability from cvelistv5 – Published: 2012-06-21 15:00 – Updated: 2024-08-06 23:00
VLAI
Summary
The change_process_uid function in os-posix.c in Qemu 0.14.0 and earlier does not properly drop group privileges when the -runas option is used, which allows local guest users to access restricted files on the host.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1039 records in the last 180 days details
References
URL Tags
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://www.openwall.com/lists/oss-security/2011/07/12/5 mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/48659 vdb-entryx_refsource_BID
http://www.openwall.com/lists/oss-security/2011/0… mailing-listx_refsource_MLIST
https://www.debian.org/security/2011/dsa-2282 vendor-advisoryx_refsource_DEBIAN
http://secunia.com/advisories/47992 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/45419 third-party-advisoryx_refsource_SECUNIA
https://bugs.launchpad.net/qemu/+bug/807893 x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-updates/2012-0… vendor-advisoryx_refsource_SUSE
http://www.osvdb.org/74752 vdb-entryx_refsource_OSVDB
http://secunia.com/advisories/47157 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/45188 third-party-advisoryx_refsource_SECUNIA
http://ubuntu.com/usn/usn-1177-1 vendor-advisoryx_refsource_UBUNTU
http://secunia.com/advisories/45187 third-party-advisoryx_refsource_SECUNIA
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://rhn.redhat.com/errata/RHSA-2011-1531.html vendor-advisoryx_refsource_REDHAT
Date Public
2011-03-27 00:00
Show details on NVD website
To clipboard 

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                    "matchCriteriaId": "B48D2B63-5171-45E6-BF19-DFC63FA6683D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:qemu:qemu:0.12.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7750C948-7169-44F1-A834-AE52BFBDC701",
                    "vulnerable": true
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                  {
                    "criteria": "cpe:2.3:a:qemu:qemu:0.12.3:*:*:*:*:*:*:*",
                    "matchCriteriaId": "CD07B7AA-7237-44A9-B8BB-ACEC48BAFBEF",
                    "vulnerable": true
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                    "matchCriteriaId": "CD38AD65-FF40-431B-BA2C-D55A7D0737A0",
                    "vulnerable": true
                  },
                  {
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                    "matchCriteriaId": "36233339-A9DF-4ACD-89A6-F79CB07E1568",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:qemu:qemu:0.13.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F385658D-5D5C-49E6-8C67-FE4321CDCE1D",
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                  },
                  {
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                    "matchCriteriaId": "0A74A421-6012-4BEC-802D-7A05D20AF285",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:qemu:qemu:0.13.0:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "EB41C21C-B250-40D1-ADC1-B03866794417",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:qemu:qemu:0.14.0:rc0:*:*:*:*:*:*",
                    "matchCriteriaId": "8162E07B-718E-41B3-B19C-A933CC1E2710",
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                  },
                  {
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                    "matchCriteriaId": "A0229959-6909-482B-9446-68C9B3021510",
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                  },
                  {
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                    "matchCriteriaId": "7048A380-A251-42D7-B081-CDB38B6A27F1",
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                  {
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                  {
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                    "vulnerable": true
                  },
                  {
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                    "matchCriteriaId": "80621FFA-6189-47CD-9A6A-1D5A781862AE",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The change_process_uid function in os-posix.c in Qemu 0.14.0 and earlier does not properly drop group privileges when the -runas option is used, which allows local guest users to access restricted files on the host."
          },
          {
            "lang": "es",
            "value": "La funci\u00f3n change_process_uid en os-posix.c en Qemu v0.14.0 y anteriores no \"suelta\" correctamente los privilegios de grupo cuando se usa la opci\u00f3n -runas, lo que permite  acceder a archivos restringidos en el host a usuarios locales invitados."
          }
        ],
        "id": "CVE-2011-2527",
        "lastModified": "2026-04-29T01:13:23.040",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "LOW",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 2.1,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2012-06-21T15:55:09.863",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081972.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://lists.opensuse.org/opensuse-updates/2012-02/msg00009.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://rhn.redhat.com/errata/RHSA-2011-1531.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/45187"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
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            ],
            "url": "http://secunia.com/advisories/45188"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/45419"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/47157"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/47992"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://ubuntu.com/usn/usn-1177-1"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.openwall.com/lists/oss-security/2011/07/12/15"
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            "url": "http://www.openwall.com/lists/oss-security/2011/07/12/5"
          },
          {
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            "url": "http://www.osvdb.org/74752"
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          {
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          },
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            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/68539"
          },
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            "url": "https://www.debian.org/security/2011/dsa-2282"
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          {
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          },
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            "tags": [
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          },
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          },
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          },
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            "url": "http://ubuntu.com/usn/usn-1177-1"
          },
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          },
          {
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            "url": "http://www.osvdb.org/74752"
          },
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            "url": "http://www.securityfocus.com/bid/48659"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://bugs.launchpad.net/qemu/+bug/807893"
          },
          {
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            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/68539"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.debian.org/security/2011/dsa-2282"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-264"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-27T15:04:46+00:00",
      "cve": "CVE-2011-2527",
      "id": "CVE-2011-2527",
      "initial_release_date": "2011-07-09T00:00:00+00:00",
      "product_status:fixed": "20",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "qemu: when started as root, extra groups are not dropped correctly",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-2527.json",
      "version": "3"
    }
  }
}



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