RHSA-2012:1185
Vulnerability from csaf_redhat
Published
2012-08-21 19:09
Modified
2012-08-21 19:12
Summary
Red Hat Security Advisory: rhev-hypervisor5 security and bug fix update

Notes

Topic
An updated rhev-hypervisor5 package that fixes one security issue and various bugs is now available. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
Details
The rhev-hypervisor5 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. It was discovered that the formatted printing functionality in glibc did not properly restrict the use of alloca(). This could allow an attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code using a format string flaw in an application, even though these protections are expected to limit the impact of such flaws to an application abort. (CVE-2012-3406) This updated package provides updated components that include fixes for various security issues. These issues have no security impact on Red Hat Enterprise Virtualization Hypervisor itself, however. The security fixes included in this update address the following CVE numbers: CVE-2012-3817 (bind issue) CVE-2012-3571 (dhcp issue) CVE-2012-2313 (kernel issue) CVE-2012-0441 (nss issue) CVE-2012-2337 and CVE-2012-3440 (sudo issues) CVE-2012-2625 (xen issue) Users of Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package, which fixes these issues.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Moderate"
    },
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 2023 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An updated rhev-hypervisor5 package that fixes one security issue and\nvarious bugs is now available.\n\nThe Red Hat Security Response Team has rated this update as having moderate\nsecurity impact. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available from the CVE link in\nthe References section.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The rhev-hypervisor5 package provides a Red Hat Enterprise Virtualization\nHypervisor ISO disk image. The Red Hat Enterprise Virtualization\nHypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor.\nIt includes everything necessary to run and manage virtual machines: A\nsubset of the Red Hat Enterprise Linux operating environment and the Red\nHat Enterprise Virtualization Agent.\n\nNote: Red Hat Enterprise Virtualization Hypervisor is only available for\nthe Intel 64 and AMD64 architectures with virtualization extensions.\n\nIt was discovered that the formatted printing functionality in glibc did\nnot properly restrict the use of alloca(). This could allow an attacker to\nbypass FORTIFY_SOURCE protections and execute arbitrary code using a format\nstring flaw in an application, even though these protections are expected\nto limit the impact of such flaws to an application abort. (CVE-2012-3406)\n\nThis updated package provides updated components that include fixes for\nvarious security issues. These issues have no security impact on Red Hat\nEnterprise Virtualization Hypervisor itself, however. The security fixes\nincluded in this update address the following CVE numbers:\n\nCVE-2012-3817 (bind issue)\n\nCVE-2012-3571 (dhcp issue)\n\nCVE-2012-2313 (kernel issue)\n\nCVE-2012-0441 (nss issue)\n\nCVE-2012-2337 and CVE-2012-3440 (sudo issues)\n\nCVE-2012-2625 (xen issue)\n\nUsers of Red Hat Enterprise Virtualization Hypervisor are advised to\nupgrade to this updated package, which fixes these issues.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat offerings.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2012:1185",
        "url": "https://access.redhat.com/errata/RHSA-2012:1185"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#moderate",
        "url": "https://access.redhat.com/security/updates/classification/#moderate"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html",
        "url": "https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html",
        "url": "https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://access.redhat.com/security/data/csaf/v2/advisories/2012/rhsa-2012_1185.json"
      }
    ],
    "title": "Red Hat Security Advisory: rhev-hypervisor5 security and bug fix update",
    "tracking": {
      "current_release_date": "2012-08-21T19:12:00Z",
      "generator": {
        "date": "2023-06-30T20:31:00Z",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "3.18.0"
        }
      },
      "id": "RHSA-2012:1185",
      "initial_release_date": "2012-08-21T19:09:00Z",
      "revision_history": [
        {
          "date": "2012-08-21T19:12:00Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_family",
            "name": "Red Hat Virtualization",
            "product": {
              "name": "Red Hat Virtualization",
              "product_id": "Red Hat Virtualization"
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2012-3406",
      "discovery_date": "2012-05-11T00:00:00Z",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla",
          "text": "https://bugzilla.redhat.com/show_bug.cgi?id=826943"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        },
        {
          "category": "description",
          "text": "The vfprintf function in stdio-common/vfprintf.c in GNU C Library (aka glibc) 2.5, 2.12, and probably other versions does not \"properly restrict the use of\" the alloca function when allocating the SPECS array, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (crash) or possibly execute arbitrary code via a crafted format string using positional parameters and a large number of format specifiers, a different vulnerability than CVE-2012-3404 and CVE-2012-3405.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "glibc: printf() unbound alloca() usage in case of positional parameters + many format specs",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Virtualization"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2012-3406",
          "url": "https://www.cve.org/CVERecord?id=CVE-2012-3406"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2012-3406",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-3406"
        },
        {
          "category": "external",
          "summary": "CVE-2012-3406",
          "url": "https://access.redhat.com/security/cve/CVE-2012-3406"
        },
        {
          "category": "external",
          "summary": "bz#826943: CVE-2012-3406 glibc: printf() unbound alloca() usage in case of positional parameters + many format specs",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=826943"
        }
      ],
      "release_date": "2012-07-11T00:00:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Before applying this update, make sure all previously-released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. Details on how to\nuse the Red Hat Network to apply this update are available at\nhttps://access.redhat.com/knowledge/articles/11258\n\nTo upgrade Hypervisors in Red Hat Enterprise Virtualization\n2.2 environments using the disk image provided by this package, refer to:\n\nhttps://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html\n\nTo upgrade Hypervisors in Red Hat Enterprise Virtualization\n3.0 environments using the disk image provided by this package, refer to:\n\nhttps://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html",
          "product_ids": [
            "Red Hat Virtualization"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2012:1185"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 6.8,
            "collateralDamagePotential": "NOT_DEFINED",
            "confidentialityImpact": "PARTIAL",
            "confidentialityRequirement": "NOT_DEFINED",
            "environmentalScore": 0.0,
            "exploitability": "NOT_DEFINED",
            "integrityImpact": "PARTIAL",
            "integrityRequirement": "NOT_DEFINED",
            "remediationLevel": "NOT_DEFINED",
            "reportConfidence": "NOT_DEFINED",
            "targetDistribution": "NOT_DEFINED",
            "temporalScore": 0.0,
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "products": [
            "Red Hat Virtualization"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2012-05-11T00:00:00Z",
          "details": "Moderate"
        }
      ],
      "title": "CVE-2012-3406 glibc: printf() unbound alloca() usage in case of positional parameters + many format specs"
    }
  ]
}


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