rhsa-2017_3472
Vulnerability from csaf_redhat
Published
2017-12-14 22:13
Modified
2024-11-05 20:18
Summary
Red Hat Security Advisory: qemu-kvm-rhev security update

Notes

Topic
An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7. Red Hat Product Security has rated this update as having a security impact of Moderate. 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): * An assertion-failure flaw was found in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service. (CVE-2017-7539) * Quick Emulator (QEMU) built with the Network Block Device (NBD) Server support is vulnerable to a crash via a SIGPIPE signal. The crash can occur if a client aborts a connection due to any failure during negotiation or read operation. A remote user/process could use this flaw to crash the qemu-nbd server resulting in a Denial of Service (DoS). (CVE-2017-10664) * Quick Emulator (QEMU), compiled with qemu_map_ram_ptr to access guests' RAM block area, is vulnerable to an OOB r/w access issue. The crash can occur if a privileged user inside a guest conducts certain DMA operations, resulting in a DoS. (CVE-2017-11334) * Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur due to an integer overflow while loading a kernel image during a guest boot. A user or process could use this flaw to potentially achieve arbitrary code execution on a host. (CVE-2017-14167) * Quick emulator (QEMU), compiled with the Cirrus CLGD 54xx VGA Emulator support, is vulnerable to an OOB write access issue. The issue could occur while writing to VGA memory via mode4and5 write functions. A privileged user inside guest could use this flaw to crash the QEMU process resulting in Denial of Serivce (DoS). (CVE-2017-15289) Red Hat would like to thank Alex for reporting CVE-2017-11334; Thomas Garnier (Google.com) for reporting CVE-2017-14167; and Guoxiang Niu (Huawei.com) for reporting CVE-2017-15289.
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": "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* An assertion-failure flaw was found in the Network Block Device (NBD) server\u0027s initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service. (CVE-2017-7539)\n\n* Quick Emulator (QEMU) built with the Network Block Device (NBD) Server support is vulnerable to a crash via a SIGPIPE signal. The crash can occur if a client aborts a connection due to any failure during negotiation or read operation. A remote user/process could use this flaw to crash the qemu-nbd server resulting in a Denial of Service (DoS). (CVE-2017-10664)\n\n* Quick Emulator (QEMU), compiled with qemu_map_ram_ptr to access guests\u0027 RAM block area, is vulnerable to an OOB r/w access issue. The crash can occur if a privileged user inside a guest conducts certain DMA operations, resulting in a DoS. (CVE-2017-11334)\n\n* Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur due to an integer overflow while loading a kernel image during a guest boot. A user or process could use this flaw to potentially achieve arbitrary code execution on a host. (CVE-2017-14167)\n\n* Quick emulator (QEMU), compiled with the Cirrus CLGD 54xx VGA Emulator support, is vulnerable to an OOB write access issue. The issue could occur while writing to VGA memory via mode4and5 write functions. A privileged user inside guest could use this flaw to crash the QEMU process resulting in Denial of Serivce (DoS). (CVE-2017-15289)\n\nRed Hat would like to thank Alex for reporting CVE-2017-11334; Thomas Garnier (Google.com) for reporting CVE-2017-14167; and Guoxiang Niu (Huawei.com) for reporting CVE-2017-15289.",
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  "vulnerabilities": [
    {
      "cve": "CVE-2017-7539",
      "cwe": {
        "id": "CWE-617",
        "name": "Reachable Assertion"
      },
      "discovery_date": "2017-07-18T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1473622"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An assertion-failure flaw was found in the Network Block Device (NBD) server\u0027s initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: qemu-nbd crashes due to undefined I/O coroutine",
          "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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          "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.9.0-16.el7_4.11.x86_64",
          "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-debuginfo-10:2.9.0-16.el7_4.11.x86_64",
          "7Server-RH7-RHOS-7.0:qemu-kvm-tools-rhev-10:2.9.0-16.el7_4.11.x86_64"
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2017-7539"
        },
        {
          "category": "external",
          "summary": "RHBZ#1473622",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1473622"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2017-7539",
          "url": "https://www.cve.org/CVERecord?id=CVE-2017-7539"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-7539",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7539"
        }
      ],
      "release_date": "2017-06-02T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2017-12-14T22:13:26+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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            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.9.0-16.el7_4.11.x86_64",
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          "restart_required": {
            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2017:3472"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
          },
          "products": [
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            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.9.0-16.el7_4.11.src",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.9.0-16.el7_4.11.x86_64",
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Qemu: qemu-nbd crashes due to undefined I/O coroutine"
    },
    {
      "cve": "CVE-2017-10664",
      "cwe": {
        "id": "CWE-248",
        "name": "Uncaught Exception"
      },
      "discovery_date": "2017-06-26T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1466190"
        }
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      "notes": [
        {
          "category": "description",
          "text": "Quick Emulator (QEMU) built with the Network Block Device (NBD) Server support is vulnerable to a crash via a SIGPIPE signal. The crash can occur if a client aborts a connection due to any failure during negotiation or read operation. A remote user/process could use this flaw to crash the qemu-nbd server resulting in a Denial of Service (DoS).",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: qemu-nbd: server breaks with SIGPIPE upon client abort",
          "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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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2017-10664"
        },
        {
          "category": "external",
          "summary": "RHBZ#1466190",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1466190"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2017-10664",
          "url": "https://www.cve.org/CVERecord?id=CVE-2017-10664"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-10664",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-10664"
        }
      ],
      "release_date": "2017-06-11T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2017-12-14T22:13:26+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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          "restart_required": {
            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2017:3472"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
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          },
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
          },
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Qemu: qemu-nbd: server breaks with SIGPIPE upon client abort"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Alex"
          ]
        }
      ],
      "cve": "CVE-2017-11334",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "discovery_date": "2017-07-06T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1471638"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Quick Emulator (QEMU), compiled with qemu_map_ram_ptr to access guests\u0027 RAM block area, is vulnerable to an OOB r/w access issue. The crash can occur if a privileged user inside a guest conducts certain DMA operations, resulting in a DoS.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: exec: oob access during dma operation",
          "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": {
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      "references": [
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2017-11334"
        },
        {
          "category": "external",
          "summary": "RHBZ#1471638",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1471638"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2017-11334",
          "url": "https://www.cve.org/CVERecord?id=CVE-2017-11334"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-11334",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-11334"
        }
      ],
      "release_date": "2017-07-13T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2017-12-14T22:13:26+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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        }
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          "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"
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            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
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            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
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            "version": "3.0"
          },
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Qemu: exec: oob access during dma operation"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Thomas Garnier"
          ],
          "organization": "Google.com"
        }
      ],
      "cve": "CVE-2017-14167",
      "cwe": {
        "id": "CWE-190",
        "name": "Integer Overflow or Wraparound"
      },
      "discovery_date": "2017-08-31T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1489375"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur due to an integer overflow while loading a kernel image during a guest boot. A user or process could use this flaw to potentially achieve arbitrary code execution on a host.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: i386: multiboot OOB access while loading kernel image",
          "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": {
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2017-14167"
        },
        {
          "category": "external",
          "summary": "RHBZ#1489375",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1489375"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2017-14167",
          "url": "https://www.cve.org/CVERecord?id=CVE-2017-14167"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-14167",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-14167"
        }
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      "release_date": "2017-09-05T00:00:00+00:00",
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          "category": "vendor_fix",
          "date": "2017-12-14T22:13:26+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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        }
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            "accessVector": "LOCAL",
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            "availabilityImpact": "PARTIAL",
            "baseScore": 3.7,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:L/AC:H/Au:N/C:P/I:P/A:P",
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            "userInteraction": "NONE",
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            "version": "3.0"
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          "details": "Moderate"
        }
      ],
      "title": "Qemu: i386: multiboot OOB access while loading kernel image"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Guoxiang Niu"
          ],
          "organization": "Huawei.com"
        }
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      "cve": "CVE-2017-15289",
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        "name": "Out-of-bounds Write"
      },
      "discovery_date": "2017-09-15T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
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      "notes": [
        {
          "category": "description",
          "text": "Quick emulator (QEMU), compiled with the Cirrus CLGD 54xx VGA Emulator support, is vulnerable to an OOB write access issue. The issue could occur while writing to VGA memory via mode4and5 write functions. A privileged user inside guest could use this flaw to crash the QEMU process resulting in Denial of Serivce (DoS).",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: cirrus: OOB access issue in mode4and5 write functions",
          "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",
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          "category": "external",
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1501290"
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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2017-15289",
          "url": "https://www.cve.org/CVERecord?id=CVE-2017-15289"
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          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-15289",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-15289"
        }
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          "url": "https://access.redhat.com/errata/RHSA-2017:3472"
        }
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        {
          "cvss_v2": {
            "accessComplexity": "HIGH",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 2.9,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:A/AC:H/Au:S/C:N/I:P/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L",
            "version": "3.0"
          },
          "products": [
            "7Server-RH7-RHOS-7.0:qemu-img-rhev-10:2.9.0-16.el7_4.11.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-common-rhev-10:2.9.0-16.el7_4.11.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.9.0-16.el7_4.11.src",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.9.0-16.el7_4.11.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-debuginfo-10:2.9.0-16.el7_4.11.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-tools-rhev-10:2.9.0-16.el7_4.11.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Qemu: cirrus: OOB access issue in mode4and5 write functions"
    }
  ]
}


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