rhsa-2020_4115
Vulnerability from csaf_redhat
Published
2020-09-30 10:09
Modified
2024-11-15 08:37
Summary
Red Hat Security Advisory: redhat-release-virtualization-host and redhat-virtualization-host security update

Notes

Topic
An update for redhat-release-virtualization-host and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7. 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
The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. The ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. The following packages have been upgraded to a later upstream version: redhat-release-virtualization-host (4.3.11), redhat-virtualization-host (4.3.11). (BZ#1868307, BZ#1878044) Security Fix(es): * grub2: Crafted grub.cfg file can lead to arbitrary code execution during boot process (CVE-2020-10713) * QEMU: usb: out-of-bounds r/w access issue while processing usb packets (CVE-2020-14364) 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": "An update for redhat-release-virtualization-host and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7.\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": "The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host\u0027s resources and performing administrative tasks. \n\nThe ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host\u0027s resources and performing administrative tasks.\n\nThe following packages have been upgraded to a later upstream version: redhat-release-virtualization-host (4.3.11), redhat-virtualization-host (4.3.11). (BZ#1868307, BZ#1878044)\n\nSecurity Fix(es):\n\n* grub2: Crafted grub.cfg file can lead to arbitrary code execution during boot process (CVE-2020-10713)\n\n* QEMU: usb: out-of-bounds r/w access issue while processing usb packets (CVE-2020-14364)\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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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Jesse Michael",
            "Mickey Shkatov"
          ],
          "organization": "Eclypsium"
        }
      ],
      "cve": "CVE-2020-10713",
      "cwe": {
        "id": "CWE-78",
        "name": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)"
      },
      "discovery_date": "2020-04-07T00:00:00+00:00",
      "flags": [
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          "system_name": "Red Hat Bugzilla ID",
          "text": "1825243"
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      ],
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        {
          "category": "description",
          "text": "A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB  verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a  networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "grub2: Crafted grub.cfg file can lead to arbitrary code execution during boot process",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Kernel and kernel-rt packages as shipped with Red Hat Enterprise Linux 7 and 8 are being updated to contain the new Red Hat certificate for secure boot.",
          "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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          "summary": "RHBZ#1825243",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1825243"
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          "summary": "RHSB-grub2bootloader",
          "url": "https://access.redhat.com/security/vulnerabilities/grub2bootloader"
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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-10713",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-10713"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-10713",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10713"
        },
        {
          "category": "external",
          "summary": "https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html",
          "url": "https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html"
        },
        {
          "category": "external",
          "summary": "https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/",
          "url": "https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/"
        },
        {
          "category": "external",
          "summary": "https://www.openwall.com/lists/oss-security/2020/07/29/3",
          "url": "https://www.openwall.com/lists/oss-security/2020/07/29/3"
        }
      ],
      "release_date": "2020-07-29T17:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-09-30T10:09:12+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/2974891",
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          "url": "https://access.redhat.com/errata/RHSA-2020:4115"
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          "details": "There is no mitigation for the flaw.",
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-0:4.3.11-20200922.0.el7_9.src",
            "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3.11-20200922.0.el7_9.noarch",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-0:4.3.11-20200922.0.el7_9.src",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-0:4.3.11-20200922.0.el7_9.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "grub2: Crafted grub.cfg file can lead to arbitrary code execution during boot process"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Xiao Wei"
          ],
          "organization": "360.com"
        },
        {
          "names": [
            "Ziming Zhang"
          ]
        }
      ],
      "cve": "CVE-2020-14364",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "discovery_date": "2020-08-13T00:00:00+00:00",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3.11-1.el7ev.src",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3.11-1.el7ev.x86_64",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-placeholder-0:4.3.11-1.el7ev.noarch"
          ]
        }
      ],
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1869201"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU. This issue occurs while processing USB packets from a guest when USBDevice \u0027setup_len\u0027 exceeds its \u0027data_buf[4096]\u0027 in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "QEMU: usb: out-of-bounds r/w access issue while processing usb packets",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue affects the version of the qemu-kvm package as shipped with the Red Hat Enterprise Linux  6, 7 and 8. Future qemu-kvm package updates for Red Hat Enterprise Linux 6, 7 and 8 may\naddress this issue.\n\nRed Hat Enterprise Linux 5 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in its future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.\n\nRed Hat OpenStack Platform 15 and newer consume fixes directly from the Red Hat Enterprise Linux 8 Advanced Virtualization repository.",
          "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": {
        "fixed": [
          "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-0:4.3.11-20200922.0.el7_9.src",
          "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3.11-20200922.0.el7_9.noarch",
          "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-0:4.3.11-20200922.0.el7_9.src",
          "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-0:4.3.11-20200922.0.el7_9.noarch"
        ],
        "known_not_affected": [
          "7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3.11-1.el7ev.src",
          "7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3.11-1.el7ev.x86_64",
          "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-placeholder-0:4.3.11-1.el7ev.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-14364"
        },
        {
          "category": "external",
          "summary": "RHBZ#1869201",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1869201"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-14364",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-14364"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-14364",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-14364"
        },
        {
          "category": "external",
          "summary": "https://www.openwall.com/lists/oss-security/2020/08/24/2",
          "url": "https://www.openwall.com/lists/oss-security/2020/08/24/2"
        },
        {
          "category": "external",
          "summary": "https://www.openwall.com/lists/oss-security/2020/08/24/3",
          "url": "https://www.openwall.com/lists/oss-security/2020/08/24/3"
        }
      ],
      "release_date": "2020-08-24T12:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-09-30T10:09:12+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/2974891",
          "product_ids": [
            "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-0:4.3.11-20200922.0.el7_9.src",
            "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3.11-20200922.0.el7_9.noarch",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-0:4.3.11-20200922.0.el7_9.src",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-0:4.3.11-20200922.0.el7_9.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2020:4115"
        },
        {
          "category": "workaround",
          "details": "Using Libvirt management interface to manage guest VMs significantly reduces impact of this issue. Libvirt starts each guest process with an unprivileged system user(ex. qemu) privileges and further confines the process with strict sVirt and SELinux policies.\n\n* https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_security_guide/",
          "product_ids": [
            "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-0:4.3.11-20200922.0.el7_9.src",
            "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3.11-20200922.0.el7_9.noarch",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3.11-1.el7ev.src",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3.11-1.el7ev.x86_64",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-0:4.3.11-20200922.0.el7_9.src",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-0:4.3.11-20200922.0.el7_9.noarch",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-placeholder-0:4.3.11-1.el7ev.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 5.0,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-0:4.3.11-20200922.0.el7_9.src",
            "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3.11-20200922.0.el7_9.noarch",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-0:4.3.11-20200922.0.el7_9.src",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-0:4.3.11-20200922.0.el7_9.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "QEMU: usb: out-of-bounds r/w access issue while processing usb packets"
    }
  ]
}


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