UBUNTU-CVE-2020-29040

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Source
https://ubuntu.com/security/CVE-2020-29040
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-29040.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-29040
Upstream
Published
2020-11-24T17:15:00Z
Modified
2025-10-24T04:48:55Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An issue was discovered in Xen through 4.14.x allowing x86 HVM guest OS users to cause a denial of service (stack corruption), cause a data leak, or possibly gain privileges because of an off-by-one error. NOTE: this issue is caused by an incorrect fix for CVE-2020-27671.

References

Affected packages

Ubuntu:16.04:LTS / xen

Package

Name
xen
Purl
pkg:deb/ubuntu/xen@4.6.5-0ubuntu1.4?arch=source&distro=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 

{
    "binaries": [
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "libxen-4.6"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "libxen-dev"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "libxenstore3.0"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.4-amd64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.4-arm64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.4-armhf"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.5-amd64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.5-arm64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.5-armhf"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.6-amd64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.6-arm64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.6-armhf"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-system-amd64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-system-arm64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-system-armhf"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-utils-4.6"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-utils-common"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xenstore-utils"
        }
    ]
}

Ubuntu:18.04:LTS / xen

Package

Name
xen
Purl
pkg:deb/ubuntu/xen@4.9.2-0ubuntu1?arch=source&distro=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 

{
    "binaries": [
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "libxen-4.9"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "libxen-dev"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "libxenstore3.0"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.6-amd64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.6-arm64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.6-armhf"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.7-amd64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.7-arm64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.7-armhf"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.8-amd64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.8-arm64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.8-armhf"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.9-amd64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.9-arm64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.9-armhf"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-system-amd64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-system-arm64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-system-armhf"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-utils-4.9"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-utils-common"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xenstore-utils"
        }
    ]
}

Ubuntu:20.04:LTS / xen

Package

Name
xen
Purl
pkg:deb/ubuntu/xen@4.11.3+24-g14b62ab3e5-1ubuntu2.3?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

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
4.11.3+24-g14b62ab3e5-1ubuntu2.3

Ecosystem specific 

{
    "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": "libxendevicemodel1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenevtchn1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenforeignmemory1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxengnttab1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenmisc4.11"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenstore3.0"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxentoolcore1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxentoollog1"
        },
        {
            "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-common"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xenstore-utils"
        }
    ]
}