rhsa-2019_4344
Vulnerability from csaf_redhat
Published
2019-12-19 15:51
Modified
2024-11-15 04:14
Summary
Red Hat Security Advisory: qemu-kvm-rhev security update

Notes

Topic
An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 10.0 (Newton). 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): * QEMU: slirp: heap buffer overflow during packet reassembly (CVE-2019-14378) * QEMU: qxl: null pointer dereference while releasing spice resources (CVE-2019-12155) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
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* QEMU: slirp: heap buffer overflow during packet reassembly (CVE-2019-14378)\n\n* QEMU: qxl: null pointer dereference while releasing spice resources (CVE-2019-12155)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
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    {
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          "names": [
            "Cornelius Aschermann",
            "Sergej Schumilo",
            "Simon Wrner"
          ],
          "organization": "Ruhr University Bochum"
        }
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        "name": "NULL Pointer Dereference"
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      "ids": [
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        }
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          "category": "description",
          "text": "interface_release_resource in hw/display/qxl.c in QEMU 3.1.x through 4.0.0 has a NULL pointer dereference.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "QEMU: qxl: null pointer dereference while releasing spice resources",
          "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.",
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        }
      ],
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      "references": [
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          "summary": "Canonical URL",
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          "date": "2019-12-19T15:51:07+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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          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.8,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L",
            "version": "3.0"
          },
          "products": [
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "QEMU: qxl: null pointer dereference while releasing spice resources"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Vishnu Dev"
          ]
        }
      ],
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      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
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          "text": "1734745"
        }
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          "category": "description",
          "text": "A heap buffer overflow issue was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in the ip_reass() routine while reassembling incoming packets if the first fragment is bigger than the m-\u003em_dat[] buffer. An attacker could use this flaw to crash the QEMU process on the host, resulting in a Denial of Service or potentially executing arbitrary code with privileges of the QEMU process.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "QEMU: slirp: heap buffer overflow during packet reassembly",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat OpenStack Platform:                                                                                                                 \n* This flaw impacts KVM user-mode or SLIRP networking, which is not used in Red Hat OpenStack Platform. Although updating is recommended for affected versions (see below), Red Hat OpenStack Platform environments are not vulnerable.\n* Because the flaw\u0027s impact is Low, it will not be fixed in Red Hat OpenStack Platform 9 which is retiring within a few weeks of the flaw\u0027s public date.",
          "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"
        }
      ],
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          "product_ids": [
            "7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.12.0-33.el7_7.4.x86_64",
            "7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.12.0-33.el7_7.4.x86_64",
            "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-33.el7_7.4.src",
            "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-33.el7_7.4.x86_64",
            "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.12.0-33.el7_7.4.x86_64",
            "7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.12.0-33.el7_7.4.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2019:4344"
        },
        {
          "category": "workaround",
          "details": "There is no external mitigation to prevent this out-of-bounds heap memory access.",
          "product_ids": [
            "7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.12.0-33.el7_7.4.x86_64",
            "7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.12.0-33.el7_7.4.x86_64",
            "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-33.el7_7.4.src",
            "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-33.el7_7.4.x86_64",
            "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.12.0-33.el7_7.4.x86_64",
            "7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.12.0-33.el7_7.4.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H",
            "version": "3.0"
          },
          "products": [
            "7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.12.0-33.el7_7.4.x86_64",
            "7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.12.0-33.el7_7.4.x86_64",
            "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-33.el7_7.4.src",
            "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-33.el7_7.4.x86_64",
            "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.12.0-33.el7_7.4.x86_64",
            "7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.12.0-33.el7_7.4.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "QEMU: slirp: heap buffer overflow during packet reassembly"
    }
  ]
}


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