csaf_redhat - rhsa-2015

rhsa-2015_1837

Vulnerability from csaf_redhat

Published

2015-09-24 14:21

Modified

2024-11-14 15:29

Summary

Red Hat Security Advisory: qemu-kvm-rhev security update

Notes

Topic

Updated qemu-kvm-rhev packages that fix one security issue are now available for Red Hat Enterprise Virtualization Hypervisor 7. Red Hat Product Security has rated this update as having Important 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

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM. A heap-based buffer overflow issue was found in the QEMU emulator's VNC display driver. It could occur while refreshing the VNC server's display surface using the vnc_refresh_server_surface() routine. A privileged guest user could use this flaw to corrupt the heap memory and crash the QEMU process instance, or to potentially use it to execute arbitrary code on the host. (CVE-2015-5225) Red Hat would like to thank Mr Qinghao Tang from QIHU 360 Inc. and Mr Zuozhi from Alibaba Inc. for reporting this issue. All qemu-kvm-rhev users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.

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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        "text": "Updated qemu-kvm-rhev packages that fix one security issue are now\navailable for Red Hat Enterprise Virtualization Hypervisor 7.\n\nRed Hat Product Security has rated this update as having Important security\nimpact. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available from the CVE link in the\nReferences section.",
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        "text": "KVM (Kernel-based Virtual Machine) is a full virtualization solution for\nLinux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the\nuser-space component for running virtual machines using KVM.\n\nA heap-based buffer overflow issue was found in the QEMU emulator\u0027s VNC\ndisplay driver. It could occur while refreshing the VNC server\u0027s display\nsurface using the vnc_refresh_server_surface() routine. A privileged guest\nuser could use this flaw to corrupt the heap memory and crash the QEMU\nprocess instance, or to potentially use it to execute arbitrary code on the\nhost. (CVE-2015-5225)\n\nRed Hat would like to thank Mr Qinghao Tang from QIHU 360 Inc. and Mr\nZuozhi from Alibaba Inc. for reporting this issue.\n\nAll qemu-kvm-rhev users are advised to upgrade to these updated packages,\nwhich contain a backported patch to correct this issue. After installing\nthis update, shut down all running virtual machines. Once all virtual\nmachines have shut down, start them again for this update to take effect.",
        "title": "Details"
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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Mr Qinghao Tang"
          ],
          "organization": "QIHU 360 Inc."
        },
        {
          "names": [
            "Mr Zuozhi"
          ],
          "organization": "Alibaba Inc."
        }
      ],
      "cve": "CVE-2015-5225",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "discovery_date": "2015-08-13T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1255896"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A heap-based buffer overflow issue was found in the QEMU emulator\u0027s VNC display driver. It could occur while refreshing the VNC server\u0027s display surface using the vnc_refresh_server_surface() routine. A privileged guest user could use this flaw to corrupt the heap memory and crash the QEMU process instance, or to potentially use it to execute arbitrary code on the host.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: ui: vnc: heap memory corruption in vnc_refresh_server_surface",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue does not affect the versions of kvm and xen packages as shipped with Red Hat Enterprise Linux 5.\n\nThis issue does not affect the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7.\n\nThis issue does not affect the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.\n\nThis issue does affect the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. Future updates for this release may address this flaw.",
          "title": "Statement"
        },
        {
          "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": {
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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2015-5225"
        },
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          "summary": "RHBZ#1255896",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1255896"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2015-5225",
          "url": "https://www.cve.org/CVERecord?id=CVE-2015-5225"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2015-5225",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-5225"
        }
      ],
      "release_date": "2015-08-22T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2015-09-24T14:21:01+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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        {
          "cvss_v2": {
            "accessComplexity": "HIGH",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.5,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:A/AC:H/Au:S/C:C/I:C/A:C",
            "version": "2.0"
          },
          "products": [
            "7Server-RHEV-Agents-7:libcacard-devel-rhev-10:2.1.2-23.el7_1.9.x86_64",
            "7Server-RHEV-Agents-7:libcacard-rhev-10:2.1.2-23.el7_1.9.x86_64",
            "7Server-RHEV-Agents-7:libcacard-tools-rhev-10:2.1.2-23.el7_1.9.x86_64",
            "7Server-RHEV-Agents-7:qemu-img-rhev-10:2.1.2-23.el7_1.9.x86_64",
            "7Server-RHEV-Agents-7:qemu-kvm-common-rhev-10:2.1.2-23.el7_1.9.x86_64",
            "7Server-RHEV-Agents-7:qemu-kvm-rhev-10:2.1.2-23.el7_1.9.src",
            "7Server-RHEV-Agents-7:qemu-kvm-rhev-10:2.1.2-23.el7_1.9.x86_64",
            "7Server-RHEV-Agents-7:qemu-kvm-rhev-debuginfo-10:2.1.2-23.el7_1.9.x86_64",
            "7Server-RHEV-Agents-7:qemu-kvm-tools-rhev-10:2.1.2-23.el7_1.9.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "Qemu: ui: vnc: heap memory corruption in vnc_refresh_server_surface"
    }
  ]
}

cve-2015-5225

Vulnerability from cvelistv5

Published

2015-11-06 21:00

Modified

2024-08-06 06:41

Severity ?

Summary

Buffer overflow in the vnc_refresh_server_surface function in the VNC display driver in QEMU before 2.4.0.1 allows guest users to cause a denial of service (heap memory corruption and process crash) or possibly execute arbitrary code on the host via unspecified vectors, related to refreshing the server display surface.

References

▼	URL	Tags
	https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg05832.html	mailing-list, x_refsource_MLIST
	https://lists.gnu.org/archive/html/qemu-devel/2015-08/msg02495.html	mailing-list, x_refsource_MLIST
	http://rhn.redhat.com/errata/RHSA-2015-1837.html	vendor-advisory, x_refsource_REDHAT
	http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165484.html	vendor-advisory, x_refsource_FEDORA
	http://www.debian.org/security/2015/dsa-3348	vendor-advisory, x_refsource_DEBIAN
	http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169039.html	vendor-advisory, x_refsource_FEDORA
	http://rhn.redhat.com/errata/RHSA-2015-1772.html	vendor-advisory, x_refsource_REDHAT
	http://www.securitytracker.com/id/1033547	vdb-entry, x_refsource_SECTRACK
	http://www.openwall.com/lists/oss-security/2015/08/21/6	mailing-list, x_refsource_MLIST
	http://www.securityfocus.com/bid/76506	vdb-entry, x_refsource_BID
	http://lists.fedoraproject.org/pipermail/package-announce/2015-September/166798.html	vendor-advisory, x_refsource_FEDORA
	https://security.gentoo.org/glsa/201602-01	vendor-advisory, x_refsource_GENTOO

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

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.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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