rhsa-2021_0934
Vulnerability from csaf_redhat
Published
2021-03-18 13:06
Modified
2024-11-05 23:23
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 13.0 (Queens). 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): * slirp: use-after-free in ip_reass() function in ip_input.c (CVE-2020-1983) * reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c (CVE-2020-16092) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page 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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  "vulnerabilities": [
    {
      "cve": "CVE-2020-1983",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "discovery_date": "2020-04-22T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1829825"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A use-after-free flaw was found in the SLiRP networking implementation of the QEMU emulator. Specifically, this flaw occurs in the ip_reass() routine while reassembling incoming IP fragments whose combined size is bigger than 65k. This flaw allows an attacker to crash the QEMU process on the host, resulting in a denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "QEMU: slirp: use-after-free in ip_reass() function in ip_input.c",
          "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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        },
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          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-1983",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1983"
        }
      ],
      "release_date": "2020-04-02T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-03-18T13:06:09+00:00",
          "details": "For details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "7Server-RH7-RHOS-13.0:qemu-img-rhev-10:2.12.0-48.el7_9.2.ppc64le",
            "7Server-RH7-RHOS-13.0:qemu-img-rhev-10:2.12.0-48.el7_9.2.x86_64",
            "7Server-RH7-RHOS-13.0:qemu-kvm-common-rhev-10:2.12.0-48.el7_9.2.ppc64le",
            "7Server-RH7-RHOS-13.0:qemu-kvm-common-rhev-10:2.12.0-48.el7_9.2.x86_64",
            "7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-48.el7_9.2.ppc64le",
            "7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-48.el7_9.2.src",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:0934"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "QEMU: slirp: use-after-free in ip_reass() function in ip_input.c"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Ziming Zhang"
          ],
          "organization": "Codesafe Team of Legendsec at Qi\u0027anxin Group"
        }
      ],
      "cve": "CVE-2020-16092",
      "cwe": {
        "id": "CWE-617",
        "name": "Reachable Assertion"
      },
      "discovery_date": "2020-07-03T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1860283"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An assertion failure flaw was found in QEMU in the network packet processing component. This issue affects the \"e1000e\" and \"vmxnet3\" network devices. This flaw allows a malicious guest user or process to abort the QEMU process on the host, resulting in a denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c",
          "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-13.0:qemu-kvm-tools-rhev-10:2.12.0-48.el7_9.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-16092"
        },
        {
          "category": "external",
          "summary": "RHBZ#1860283",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1860283"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-16092",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-16092"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-16092",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-16092"
        }
      ],
      "release_date": "2020-07-27T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-03-18T13:06:09+00:00",
          "details": "For details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:0934"
        }
      ],
      "scores": [
        {
          "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:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L",
            "version": "3.1"
          },
          "products": [
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            "7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-48.el7_9.2.src",
            "7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-48.el7_9.2.x86_64",
            "7Server-RH7-RHOS-13.0:qemu-kvm-rhev-debuginfo-10:2.12.0-48.el7_9.2.ppc64le",
            "7Server-RH7-RHOS-13.0:qemu-kvm-rhev-debuginfo-10:2.12.0-48.el7_9.2.x86_64",
            "7Server-RH7-RHOS-13.0:qemu-kvm-tools-rhev-10:2.12.0-48.el7_9.2.ppc64le",
            "7Server-RH7-RHOS-13.0:qemu-kvm-tools-rhev-10:2.12.0-48.el7_9.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c"
    }
  ]
}


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