UBUNTU-CVE-2020-15564

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Source

https://ubuntu.com/security/CVE-2020-15564

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-15564.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-15564

Related

Published

2020-07-07T13:15:00Z

Modified

2024-10-15T14:07:33Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

An issue was discovered in Xen through 4.13.x, allowing Arm guest OS users to cause a hypervisor crash because of a missing alignment check in VCPUOPregistervcpuinfo. The hypercall VCPUOPregistervcpuinfo is used by a guest to register a shared region with the hypervisor. The region will be mapped into Xen address space so it can be directly accessed. On Arm, the region is accessed with instructions that require a specific alignment. Unfortunately, there is no check that the address provided by the guest will be correctly aligned. As a result, a malicious guest could cause a hypervisor crash by passing a misaligned address. A malicious guest administrator may cause a hypervisor crash, resulting in a Denial of Service (DoS). All Xen versions are vulnerable. Only Arm systems are vulnerable. x86 systems are not affected.

References

Affected packages

Ubuntu:Pro:16.04:LTS / xen

Package

Name: xen
Purl: pkg:deb/ubuntu/xen?arch=src?distro=esm-infra/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.5.1-0ubuntu1

4.5.1-0ubuntu2

4.6.0-1ubuntu1

4.6.0-1ubuntu2

4.6.0-1ubuntu4

4.6.0-1ubuntu4.1

4.6.0-1ubuntu4.2

4.6.0-1ubuntu4.3

4.6.5-0ubuntu1

4.6.5-0ubuntu1.1

4.6.5-0ubuntu1.2

4.6.5-0ubuntu1.4

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / xen

Package

Name: xen
Purl: pkg:deb/ubuntu/xen?arch=src?distro=esm-infra/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.9.0-0ubuntu3

4.9.0-0ubuntu4

4.9.2-0ubuntu1

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / xen

Package

Name: xen
Purl: pkg:deb/ubuntu/xen?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.11.3+24-g14b62ab3e5-1ubuntu2.3

Affected versions

4.*

4.9.2-0ubuntu2

4.9.2-0ubuntu6

4.9.2-0ubuntu7

4.11.3+24-g14b62ab3e5-1ubuntu1

4.11.3+24-g14b62ab3e5-1ubuntu2

4.11.3+24-g14b62ab3e5-1ubuntu2.2

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxen-dev"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxencall1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxencall1-dbgsym"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxendevicemodel1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxendevicemodel1-dbgsym"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenevtchn1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenevtchn1-dbgsym"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenforeignmemory1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenforeignmemory1-dbgsym"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxengnttab1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxengnttab1-dbgsym"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenmisc4.11"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenmisc4.11-dbgsym"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenstore3.0"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenstore3.0-dbgsym"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxentoolcore1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxentoolcore1-dbgsym"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxentoollog1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxentoollog1-dbgsym"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-doc"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-4.11-amd64"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-4.11-arm64"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-4.11-armhf"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-4.9-amd64"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-4.9-arm64"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-4.9-armhf"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-common"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-system-amd64"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-system-arm64"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-system-armhf"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-utils-4.11"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-utils-4.11-dbgsym"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-utils-common"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-utils-common-dbgsym"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xenstore-utils"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xenstore-utils-dbgsym"
        }
    ]
}

Ubuntu:22.04:LTS / xen

Package

Name: xen
Purl: pkg:deb/ubuntu/xen?arch=src?distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.11.4+24-gddaaccbbab-1ubuntu2

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxen-dev"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxencall1"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxencall1-dbgsym"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxendevicemodel1"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxendevicemodel1-dbgsym"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxenevtchn1"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxenevtchn1-dbgsym"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxenforeignmemory1"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxenforeignmemory1-dbgsym"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxengnttab1"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxengnttab1-dbgsym"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxenmisc4.11"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxenmisc4.11-dbgsym"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxenstore3.0"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxenstore3.0-dbgsym"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxentoolcore1"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxentoolcore1-dbgsym"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxentoollog1"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "libxentoollog1-dbgsym"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xen-doc"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xen-hypervisor-4.11-amd64"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xen-hypervisor-4.11-arm64"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xen-hypervisor-4.11-armhf"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xen-hypervisor-common"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xen-system-amd64"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xen-system-arm64"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xen-system-armhf"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xen-utils-4.11"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xen-utils-4.11-dbgsym"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xen-utils-common"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xen-utils-common-dbgsym"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xenstore-utils"
        },
        {
            "binary_version": "4.11.4+24-gddaaccbbab-1ubuntu2",
            "binary_name": "xenstore-utils-dbgsym"
        }
    ]
}