rhsa-2017_1441
Vulnerability from csaf_redhat
Published
2017-06-14 15:20
Modified
2024-11-05 20:03
Summary
Red Hat Security Advisory: qemu-kvm-rhev security and bug fix update

Notes

Topic
An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. Security Fix(es): * A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603) * An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) * An out-of-bounds memory access issue was found in QEMU's VNC display driver support. The vulnerability could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user/process inside a guest could use this flaw to crash the QEMU process, resulting in a denial of service. (CVE-2017-2633) * An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc.) and Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc.) for reporting CVE-2017-7718.
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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        "text": "An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
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        "text": "KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.\n\nSecurity Fix(es):\n\n* A heap buffer overflow flaw was found in QEMU\u0027s Cirrus CLGD 54xx VGA emulator\u0027s VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603)\n\n* An out-of-bounds r/w access issue was found in QEMU\u0027s Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980)\n\n* An out-of-bounds memory access issue was found in QEMU\u0027s VNC display driver support. The vulnerability could occur while refreshing the VNC display surface area in the \u0027vnc_refresh_server_surface\u0027. A user/process inside a guest could use this flaw to crash the QEMU process, resulting in a denial of service. (CVE-2017-2633)\n\n* An out-of-bounds access issue was found in QEMU\u0027s Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718)\n\nRed Hat would like to thank Jiangxin (PSIRT Huawei Inc.) and Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc.) for reporting CVE-2017-7718.",
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        "name": "Heap-based Buffer Overflow"
      },
      "discovery_date": "2016-11-16T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1430056"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A heap buffer overflow flaw was found in QEMU\u0027s Cirrus CLGD 54xx VGA emulator\u0027s VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: cirrus: heap buffer overflow via vnc connection",
          "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"
        }
      ],
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2016-9603"
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          "summary": "RHBZ#1430056",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1430056"
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2016-9603",
          "url": "https://www.cve.org/CVERecord?id=CVE-2016-9603"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2016-9603",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9603"
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      ],
      "release_date": "2017-03-14T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2017-06-14T15:20:20+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter 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.",
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      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.9,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:A/AC:M/Au:S/C:P/I:P/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L",
            "version": "3.0"
          },
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      ],
      "threats": [
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          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "Qemu: cirrus: heap buffer overflow via vnc connection"
    },
    {
      "cve": "CVE-2017-2633",
      "cwe": {
        "id": "CWE-120",
        "name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
      },
      "discovery_date": "2016-12-01T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1425939"
        }
      ],
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        {
          "category": "description",
          "text": "An out-of-bounds memory access issue was found in Quick Emulator (QEMU) in the VNC display driver. This flaw could occur while refreshing the VNC display surface area in the \u0027vnc_refresh_server_surface\u0027. A user inside a guest could use this flaw to crash the QEMU process.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: VNC: memory corruption due to unchecked resolution limit",
          "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"
        }
      ],
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      "references": [
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2017-2633"
        },
        {
          "category": "external",
          "summary": "RHBZ#1425939",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1425939"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2017-2633",
          "url": "https://www.cve.org/CVERecord?id=CVE-2017-2633"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-2633",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-2633"
        }
      ],
      "release_date": "2016-12-01T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2017-06-14T15:20:20+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter 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.",
          "product_ids": [
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            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.src",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-debuginfo-2:0.12.1.2-2.503.el6_9.3.x86_64",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2017:1441"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 3.8,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:A/AC:M/Au:S/C:N/I:P/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L",
            "version": "3.0"
          },
          "products": [
            "6Server-RH6-RHOS-5.0:qemu-img-rhev-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.src",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-debuginfo-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-tools-2:0.12.1.2-2.503.el6_9.3.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Qemu: VNC: memory corruption due to unchecked resolution limit"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Jiangxin"
          ],
          "organization": "PSIRT Huawei Inc."
        }
      ],
      "cve": "CVE-2017-7718",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "discovery_date": "2017-03-15T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1443441"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An out-of-bounds access issue was found in QEMU\u0027s Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: display: cirrus: OOB read access issue",
          "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": [
          "6Server-RH6-RHOS-5.0:qemu-img-rhev-2:0.12.1.2-2.503.el6_9.3.x86_64",
          "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.src",
          "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.x86_64",
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          "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-tools-2:0.12.1.2-2.503.el6_9.3.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2017-7718"
        },
        {
          "category": "external",
          "summary": "RHBZ#1443441",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1443441"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2017-7718",
          "url": "https://www.cve.org/CVERecord?id=CVE-2017-7718"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-7718",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7718"
        }
      ],
      "release_date": "2017-03-14T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2017-06-14T15:20:20+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter 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.",
          "product_ids": [
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            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.src",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-debuginfo-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-tools-2:0.12.1.2-2.503.el6_9.3.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2017:1441"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "HIGH",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 2.9,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:A/AC:H/Au:S/C:P/I:N/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.0,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L",
            "version": "3.0"
          },
          "products": [
            "6Server-RH6-RHOS-5.0:qemu-img-rhev-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.src",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-debuginfo-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-tools-2:0.12.1.2-2.503.el6_9.3.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Qemu: display: cirrus: OOB read access issue"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Jiangxin"
          ],
          "organization": "PSIRT Huawei Inc."
        },
        {
          "names": [
            "Li Qiang"
          ],
          "organization": "Qihoo 360 Gear Team"
        }
      ],
      "cve": "CVE-2017-7980",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "discovery_date": "2017-02-22T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1444371"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An out-of-bounds r/w access issue was found in QEMU\u0027s Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: display: cirrus: OOB r/w access issues in bitblt routines",
          "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": [
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          "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-tools-2:0.12.1.2-2.503.el6_9.3.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2017-7980"
        },
        {
          "category": "external",
          "summary": "RHBZ#1444371",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1444371"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2017-7980",
          "url": "https://www.cve.org/CVERecord?id=CVE-2017-7980"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-7980",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7980"
        }
      ],
      "release_date": "2017-03-15T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2017-06-14T15:20:20+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter 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.",
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            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-debuginfo-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-tools-2:0.12.1.2-2.503.el6_9.3.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2017:1441"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.9,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:A/AC:M/Au:S/C:P/I:P/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L",
            "version": "3.0"
          },
          "products": [
            "6Server-RH6-RHOS-5.0:qemu-img-rhev-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.src",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-debuginfo-2:0.12.1.2-2.503.el6_9.3.x86_64",
            "6Server-RH6-RHOS-5.0:qemu-kvm-rhev-tools-2:0.12.1.2-2.503.el6_9.3.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "Qemu: display: cirrus: OOB r/w access issues in bitblt routines"
    }
  ]
}


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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.
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