rhsa-2012_1262
Vulnerability from csaf_redhat
Published
2012-09-13 16:48
Modified
2012-09-13 16:48
Summary
Red Hat Security Advisory: rhev-hypervisor5 security and bug fix update

Notes

Topic
An updated rhev-hypervisor5 package that fixes multiple security issues and various bugs is now available. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links 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. A flaw was found in the way QEMU handled VT100 terminal escape sequences when emulating certain character devices. A guest user with privileges to write to a character device that is emulated on the host using a virtual console back-end could use this flaw to crash the qemu-kvm process on the host or, possibly, escalate their privileges on the host. (CVE-2012-3515) Multiple integer overflow flaws, leading to stack-based buffer overflows, were found in glibc's functions for converting a string to a numeric representation (strtod(), strtof(), and strtold()). If an application used such a function on attacker controlled input, it could cause the application to crash or, potentially, execute arbitrary code. (CVE-2012-3480) Red Hat would like to thank the Xen project for reporting the CVE-2012-3515 issue. This updated package provides updated components that include various bug fixes, as well as a fix for CVE-2012-3515 in the xen package; however, for this component, it had no security impact on Red Hat Enterprise Virtualization Hypervisor itself. 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": "Important"
    },
    "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 multiple security issues and\nvarious bugs is now available.\n\nThe Red Hat Security Response Team has rated this update as having\nimportant security impact. Common Vulnerability Scoring System (CVSS) base\nscores, which give detailed severity ratings, are available for each\nvulnerability from the CVE links in the 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\nA flaw was found in the way QEMU handled VT100 terminal escape sequences\nwhen emulating certain character devices. A guest user with privileges to\nwrite to a character device that is emulated on the host using a virtual\nconsole back-end could use this flaw to crash the qemu-kvm process on the\nhost or, possibly, escalate their privileges on the host. (CVE-2012-3515)\n\nMultiple integer overflow flaws, leading to stack-based buffer overflows,\nwere found in glibc\u0027s functions for converting a string to a numeric\nrepresentation (strtod(), strtof(), and strtold()). If an application used\nsuch a function on attacker controlled input, it could cause the\napplication to crash or, potentially, execute arbitrary code.\n(CVE-2012-3480)\n\nRed Hat would like to thank the Xen project for reporting the CVE-2012-3515\nissue.\n\nThis updated package provides updated components that include various bug\nfixes, as well as a fix for CVE-2012-3515 in the xen package; however, for\nthis component, it had no security impact on Red Hat Enterprise\nVirtualization Hypervisor itself.\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-2012:1262",
        "url": "https://access.redhat.com/errata/RHSA-2012:1262"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#important",
        "url": "https://access.redhat.com/security/updates/classification/#important"
      },
      {
        "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_1262.json"
      }
    ],
    "title": "Red Hat Security Advisory: rhev-hypervisor5 security and bug fix update",
    "tracking": {
      "current_release_date": "2012-09-13T16:48:00Z",
      "generator": {
        "date": "2023-06-30T20:40:00Z",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "3.18.0"
        }
      },
      "id": "RHSA-2012:1262",
      "initial_release_date": "2012-09-13T16:48:00Z",
      "revision_history": [
        {
          "date": "2012-09-13T16:48:00Z",
          "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-2012-3480",
      "cwe": {
        "id": "CWE-121",
        "name": "Stack-based Buffer Overflow"
      },
      "discovery_date": "2012-08-13T00:00:00Z",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla",
          "text": "https://bugzilla.redhat.com/show_bug.cgi?id=847715"
        }
      ],
      "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": "Multiple integer overflows in the (1) strtod, (2) strtof, (3) strtold, (4) strtod_l, and other unspecified \"related functions\" in stdlib in GNU C Library (aka glibc or libc6) 2.16 allow local users to cause a denial of service (application crash) and possibly execute arbitrary code via a long string, which triggers a stack-based buffer overflow.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "glibc: Integer overflows, leading to stack-based buffer overflows in strto* related routines",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Virtualization"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2012-3480",
          "url": "https://www.cve.org/CVERecord?id=CVE-2012-3480"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2012-3480",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-3480"
        },
        {
          "category": "external",
          "summary": "CVE-2012-3480",
          "url": "https://access.redhat.com/security/cve/CVE-2012-3480"
        },
        {
          "category": "external",
          "summary": "bz#847715: CVE-2012-3480 glibc: Integer overflows, leading to stack-based buffer overflows in strto* related routines",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=847715"
        }
      ],
      "release_date": "2012-08-12T00:00:00Z",
      "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-2012:1262"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 4.4,
            "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:L/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "products": [
            "Red Hat Virtualization"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2012-08-13T00:00:00Z",
          "details": "Moderate"
        }
      ],
      "title": "CVE-2012-3480 glibc: Integer overflows, leading to stack-based buffer overflows in strto* related routines"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Xen project"
          ]
        }
      ],
      "cve": "CVE-2012-3515",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "discovery_date": "2012-08-23T00:00:00Z",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla",
          "text": "https://bugzilla.redhat.com/show_bug.cgi?id=851252"
        }
      ],
      "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": "Qemu, as used in Xen 4.0, 4.1 and possibly other products, when emulating certain devices with a virtual console backend, allows local OS guest users to gain privileges via a crafted escape VT100 sequence that triggers the overwrite of a \"device model\u0027s address space.\"",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "VT100 emulation vulnerability",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Virtualization"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2012-3515",
          "url": "https://www.cve.org/CVERecord?id=CVE-2012-3515"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2012-3515",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-3515"
        },
        {
          "category": "external",
          "summary": "CVE-2012-3515",
          "url": "https://access.redhat.com/security/cve/CVE-2012-3515"
        },
        {
          "category": "external",
          "summary": "bz#851252: VT100 emulation vulnerability",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=851252"
        }
      ],
      "release_date": "2012-09-05T00:00:00Z",
      "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-2012:1262"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "COMPLETE",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.4,
            "collateralDamagePotential": "NOT_DEFINED",
            "confidentialityImpact": "COMPLETE",
            "confidentialityRequirement": "NOT_DEFINED",
            "environmentalScore": 0.0,
            "exploitability": "NOT_DEFINED",
            "integrityImpact": "COMPLETE",
            "integrityRequirement": "NOT_DEFINED",
            "remediationLevel": "NOT_DEFINED",
            "reportConfidence": "NOT_DEFINED",
            "targetDistribution": "NOT_DEFINED",
            "temporalScore": 0.0,
            "vectorString": "AV:A/AC:M/Au:S/C:C/I:C/A:C",
            "version": "2.0"
          },
          "products": [
            "Red Hat Virtualization"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2012-08-23T00:00:00Z",
          "details": "Important"
        }
      ],
      "title": "VT100 emulation vulnerability"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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