RHSA-2010:0476

Vulnerability from csaf_redhat - Published: 2010-06-22 13:54 - Updated: 2026-03-13 01:03
Summary
Red Hat Security Advisory: rhev-hypervisor security, bug fix, and enhancement update
Severity
Important
Notes
Topic: An updated rhev-hypervisor package that fixes two security issues, multiple bugs, and adds enhancements 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-hypervisor 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-KVM handled erroneous data provided by the Linux virtio-net driver, used by guest operating systems. Due to a deficiency in the TSO (TCP segment offloading) implementation, a guest's virtio-net driver would transmit improper data to a certain QEMU-KVM process on the host, causing the guest to crash. A remote attacker could use this flaw to send specially-crafted data to a target guest system, causing that guest to crash. (CVE-2010-0741) A flaw was found in the way the Virtual Desktop Server Manager (VDSM) handled the removal of a virtual machine's (VM) data back end (such as an image or a volume). When removing an image or a volume, it was not securely deleted from its corresponding data domain as expected. A guest user in a new, raw VM, created in a data domain that has had VMs deleted from it, could use this flaw to read limited data from those deleted VMs, potentially disclosing sensitive information. (CVE-2010-2223) This updated package provides updated components that include fixes for security issues; however, these issues have no security impact for Red Hat Enterprise Virtualization Hypervisor. These fixes are for dbus issue CVE-2009-1189; kernel issues CVE-2010-0307, CVE-2010-0410, CVE-2010-0730, CVE-2010-1085, and CVE-2010-1086; openldap issue CVE-2009-3767; and sudo issues CVE-2010-0426, CVE-2010-0427, and CVE-2010-1163. This update also fixes several bugs and adds several enhancements. Documentation for these bug fixes and enhancements is available from http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Virtualization/2.2/html/Servers-5.5-2.2_Hypervisor_Security_Update As Red Hat Enterprise Virtualization Hypervisor is based on KVM, the bug fixes and enhancements from the KVM updates RHSA-2010:0271 and RHBA-2010:0419 have been included in this update. Also included are the bug fixes and enhancements from the Virtual Desktop Server Manager (VDSM) update RHSA-2010:0473, and fence-agents update RHBA-2010:0477. KVM: https://rhn.redhat.com/errata/RHSA-2010-0271.html and https://rhn.redhat.com/errata/RHBA-2010-0419.html VDSM: https://rhn.redhat.com/errata/RHSA-2010-0473.html fence-agents: https://rhn.redhat.com/errata/RHBA-2010-0477.html Users of the Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package, which corrects these issues and adds these enhancements.
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.
CVE-2010-0430

libspice, as used in QEMU-KVM in Red Hat Enterprise Virtualization Hypervisor (aka RHEV-H or rhev-hypervisor) before 5.5-2.2 and possibly other products, allows guest OS users to read from or write to arbitrary QEMU memory by modifying the address that is used by Cairo for memory mappings.

6.6 ()
AV:L/AC:M/Au:S/C:C/I:C/A:C
Vendor Fix Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 https://access.redhat.com/errata/RHSA-2010:0476
CVE-2010-0741

The virtio_net_bad_features function in hw/virtio-net.c in the virtio-net driver in the Linux kernel before 2.6.26, when used on a guest OS in conjunction with qemu-kvm 0.11.0 or KVM 83, allows remote attackers to cause a denial of service (guest OS crash, and an associated qemu-kvm process exit) by sending a large amount of network traffic to a TCP port on the guest OS, related to a virtio-net whitelist that includes an improper implementation of TCP Segment Offloading (TSO).

7.1 ()
AV:N/AC:M/Au:N/C:N/I:N/A:C
CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Vendor Fix Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 https://access.redhat.com/errata/RHSA-2010:0476
CVE-2010-2223

Previously, the ISO image domain could not be shared with multiple Data Centers. The user had to define an independent ISO domain for each Data Center. With this update, the ISO image domain can be shared between multiple Data Centers.

2.1 ()
AV:L/AC:L/Au:N/C:P/I:N/A:N
Vendor Fix Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 https://access.redhat.com/errata/RHSA-2010:0476
References
To clipboard 

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          "text": "libspice, as used in QEMU-KVM in Red Hat Enterprise Virtualization Hypervisor (aka RHEV-H or rhev-hypervisor) before 5.5-2.2 and possibly other products, allows guest OS users to read from or write to arbitrary QEMU memory by modifying the address that is used by Cairo for memory mappings.",
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            "integrityImpact": "COMPLETE",
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            "version": "2.0"
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          "details": "Important"
        }
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            "5Server-RHEV-Hypervisor-2:rhev-hypervisor-0:5.5-2.2.4.2.el5rhev.src",
            "5Server-RHEV-Hypervisor-2:rhev-hypervisor-pxe-0:5.5-2.2.4.2.el5rhev.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2010:0476"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.1,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          "products": [
            "5Server-RHEV-Hypervisor-2:rhev-hypervisor-0:5.5-2.2.4.2.el5rhev.noarch",
            "5Server-RHEV-Hypervisor-2:rhev-hypervisor-0:5.5-2.2.4.2.el5rhev.src",
            "5Server-RHEV-Hypervisor-2:rhev-hypervisor-pxe-0:5.5-2.2.4.2.el5rhev.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "qemu: Improper handling of erroneous data provided by Linux virtio-net driver"
    },
    {
      "cve": "CVE-2010-2223",
      "discovery_date": "2009-09-22T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "604752"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Previously, the ISO image domain could not be shared with multiple Data Centers. The user had to define an independent ISO domain for each Data Center. With this update, the ISO image domain can be shared between multiple Data Centers.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "vdsm: missing VM post-zeroing after removal",
          "title": "Vulnerability summary"
        },
        {
          "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"
        }
      ],
      "product_status": {
        "fixed": [
          "5Server-RHEV-Hypervisor-2:rhev-hypervisor-0:5.5-2.2.4.2.el5rhev.noarch",
          "5Server-RHEV-Hypervisor-2:rhev-hypervisor-0:5.5-2.2.4.2.el5rhev.src",
          "5Server-RHEV-Hypervisor-2:rhev-hypervisor-pxe-0:5.5-2.2.4.2.el5rhev.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2010-2223"
        },
        {
          "category": "external",
          "summary": "RHBZ#604752",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=604752"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2010-2223",
          "url": "https://www.cve.org/CVERecord?id=CVE-2010-2223"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2010-2223",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2010-2223"
        }
      ],
      "release_date": "2009-10-22T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2010-06-22T13:54:00+00:00",
          "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\nhttp://kbase.redhat.com/faq/docs/DOC-11259",
          "product_ids": [
            "5Server-RHEV-Hypervisor-2:rhev-hypervisor-0:5.5-2.2.4.2.el5rhev.noarch",
            "5Server-RHEV-Hypervisor-2:rhev-hypervisor-0:5.5-2.2.4.2.el5rhev.src",
            "5Server-RHEV-Hypervisor-2:rhev-hypervisor-pxe-0:5.5-2.2.4.2.el5rhev.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2010:0476"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "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"
          },
          "products": [
            "5Server-RHEV-Hypervisor-2:rhev-hypervisor-0:5.5-2.2.4.2.el5rhev.noarch",
            "5Server-RHEV-Hypervisor-2:rhev-hypervisor-0:5.5-2.2.4.2.el5rhev.src",
            "5Server-RHEV-Hypervisor-2:rhev-hypervisor-pxe-0:5.5-2.2.4.2.el5rhev.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "vdsm: missing VM post-zeroing after removal"
    }
  ]
}


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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.