UBUNTU-CVE-2021-20221

Source
https://ubuntu.com/security/CVE-2021-20221
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20221.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-20221
Upstream
Downstream
Related
Published
2021-05-13T16:15:00Z
Modified
2025-07-16T07:42:01.054655Z
Severity
  • 6.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

An out-of-bounds heap buffer access issue was found in the ARM Generic Interrupt Controller emulator of QEMU up to and including qemu 4.2.0on aarch64 platform. The issue occurs because while writing an interrupt ID to the controller memory area, it is not masked to be 4 bits wide. It may lead to the said issue while updating controller state fields and their subsequent processing. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.

References

Affected packages

Ubuntu:Pro:14.04:LTS / qemu

Package

Name
qemu
Purl
pkg:deb/ubuntu/qemu@2.0.0+dfsg-2ubuntu1.47+esm4?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

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

Affected versions

1.*

1.5.0+dfsg-3ubuntu5
1.5.0+dfsg-3ubuntu6
1.6.0+dfsg-2ubuntu1
1.6.0+dfsg-2ubuntu2
1.6.0+dfsg-2ubuntu3
1.6.0+dfsg-2ubuntu4
1.7.0+dfsg-2ubuntu1
1.7.0+dfsg-2ubuntu2
1.7.0+dfsg-2ubuntu3
1.7.0+dfsg-2ubuntu4
1.7.0+dfsg-2ubuntu5
1.7.0+dfsg-2ubuntu7
1.7.0+dfsg-2ubuntu8
1.7.0+dfsg-2ubuntu9
1.7.0+dfsg-3ubuntu1~ppa1
1.7.0+dfsg-3ubuntu1
1.7.0+dfsg-3ubuntu2
1.7.0+dfsg-3ubuntu3
1.7.0+dfsg-3ubuntu4
1.7.0+dfsg-3ubuntu5
1.7.0+dfsg-3ubuntu6
1.7.0+dfsg-3ubuntu7

2.*

2.0.0~rc1+dfsg-0ubuntu1
2.0.0~rc1+dfsg-0ubuntu2
2.0.0~rc1+dfsg-0ubuntu3
2.0.0~rc1+dfsg-0ubuntu3.1
2.0.0+dfsg-2ubuntu1
2.0.0+dfsg-2ubuntu1.1
2.0.0+dfsg-2ubuntu1.2
2.0.0+dfsg-2ubuntu1.3
2.0.0+dfsg-2ubuntu1.5
2.0.0+dfsg-2ubuntu1.6
2.0.0+dfsg-2ubuntu1.7
2.0.0+dfsg-2ubuntu1.8
2.0.0+dfsg-2ubuntu1.9
2.0.0+dfsg-2ubuntu1.10
2.0.0+dfsg-2ubuntu1.11
2.0.0+dfsg-2ubuntu1.13
2.0.0+dfsg-2ubuntu1.14
2.0.0+dfsg-2ubuntu1.15
2.0.0+dfsg-2ubuntu1.16
2.0.0+dfsg-2ubuntu1.17
2.0.0+dfsg-2ubuntu1.18
2.0.0+dfsg-2ubuntu1.19
2.0.0+dfsg-2ubuntu1.20
2.0.0+dfsg-2ubuntu1.21
2.0.0+dfsg-2ubuntu1.22
2.0.0+dfsg-2ubuntu1.24
2.0.0+dfsg-2ubuntu1.25
2.0.0+dfsg-2ubuntu1.26
2.0.0+dfsg-2ubuntu1.27
2.0.0+dfsg-2ubuntu1.28
2.0.0+dfsg-2ubuntu1.29
2.0.0+dfsg-2ubuntu1.30
2.0.0+dfsg-2ubuntu1.31
2.0.0+dfsg-2ubuntu1.32
2.0.0+dfsg-2ubuntu1.33
2.0.0+dfsg-2ubuntu1.34
2.0.0+dfsg-2ubuntu1.35
2.0.0+dfsg-2ubuntu1.36
2.0.0+dfsg-2ubuntu1.38
2.0.0+dfsg-2ubuntu1.39
2.0.0+dfsg-2ubuntu1.40
2.0.0+dfsg-2ubuntu1.41
2.0.0+dfsg-2ubuntu1.42
2.0.0+dfsg-2ubuntu1.43
2.0.0+dfsg-2ubuntu1.44
2.0.0+dfsg-2ubuntu1.45
2.0.0+dfsg-2ubuntu1.46
2.0.0+dfsg-2ubuntu1.47
2.0.0+dfsg-2ubuntu1.47+esm1
2.0.0+dfsg-2ubuntu1.47+esm2
2.0.0+dfsg-2ubuntu1.47+esm3
2.0.0+dfsg-2ubuntu1.47+esm4

Ubuntu:Pro:16.04:LTS / qemu

Package

Name
qemu
Purl
pkg:deb/ubuntu/qemu@1:2.5+dfsg-5ubuntu10.51+esm3?arch=source&distro=esm-infra/xenial

Affected ranges

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

Affected versions

1:2.*

1:2.3+dfsg-5ubuntu9
1:2.3+dfsg-5ubuntu10
1:2.4+dfsg-4ubuntu1
1:2.4+dfsg-4ubuntu2
1:2.4+dfsg-4ubuntu3
1:2.4+dfsg-5ubuntu3
1:2.5+dfsg-1ubuntu2
1:2.5+dfsg-1ubuntu3
1:2.5+dfsg-1ubuntu4
1:2.5+dfsg-1ubuntu5
1:2.5+dfsg-5ubuntu1
1:2.5+dfsg-5ubuntu2
1:2.5+dfsg-5ubuntu4
1:2.5+dfsg-5ubuntu6
1:2.5+dfsg-5ubuntu7
1:2.5+dfsg-5ubuntu10
1:2.5+dfsg-5ubuntu10.1
1:2.5+dfsg-5ubuntu10.2
1:2.5+dfsg-5ubuntu10.3
1:2.5+dfsg-5ubuntu10.4
1:2.5+dfsg-5ubuntu10.5
1:2.5+dfsg-5ubuntu10.6
1:2.5+dfsg-5ubuntu10.7
1:2.5+dfsg-5ubuntu10.8
1:2.5+dfsg-5ubuntu10.9
1:2.5+dfsg-5ubuntu10.10
1:2.5+dfsg-5ubuntu10.11
1:2.5+dfsg-5ubuntu10.13
1:2.5+dfsg-5ubuntu10.14
1:2.5+dfsg-5ubuntu10.15
1:2.5+dfsg-5ubuntu10.16
1:2.5+dfsg-5ubuntu10.20
1:2.5+dfsg-5ubuntu10.21
1:2.5+dfsg-5ubuntu10.22
1:2.5+dfsg-5ubuntu10.24
1:2.5+dfsg-5ubuntu10.25
1:2.5+dfsg-5ubuntu10.26
1:2.5+dfsg-5ubuntu10.28
1:2.5+dfsg-5ubuntu10.29
1:2.5+dfsg-5ubuntu10.30
1:2.5+dfsg-5ubuntu10.31
1:2.5+dfsg-5ubuntu10.32
1:2.5+dfsg-5ubuntu10.33
1:2.5+dfsg-5ubuntu10.34
1:2.5+dfsg-5ubuntu10.35
1:2.5+dfsg-5ubuntu10.36
1:2.5+dfsg-5ubuntu10.37
1:2.5+dfsg-5ubuntu10.38
1:2.5+dfsg-5ubuntu10.39
1:2.5+dfsg-5ubuntu10.40
1:2.5+dfsg-5ubuntu10.41
1:2.5+dfsg-5ubuntu10.42
1:2.5+dfsg-5ubuntu10.43
1:2.5+dfsg-5ubuntu10.44
1:2.5+dfsg-5ubuntu10.45
1:2.5+dfsg-5ubuntu10.46
1:2.5+dfsg-5ubuntu10.47
1:2.5+dfsg-5ubuntu10.48
1:2.5+dfsg-5ubuntu10.49
1:2.5+dfsg-5ubuntu10.51
1:2.5+dfsg-5ubuntu10.51+esm1
1:2.5+dfsg-5ubuntu10.51+esm2
1:2.5+dfsg-5ubuntu10.51+esm3

Ubuntu:18.04:LTS / qemu

Package

Name
qemu
Purl
pkg:deb/ubuntu/qemu@1:2.11+dfsg-1ubuntu7.37?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.11+dfsg-1ubuntu7.37

Affected versions

1:2.*

1:2.10+dfsg-0ubuntu3
1:2.10+dfsg-0ubuntu4
1:2.10+dfsg-0ubuntu5
1:2.11+dfsg-1ubuntu1
1:2.11+dfsg-1ubuntu2
1:2.11+dfsg-1ubuntu4
1:2.11+dfsg-1ubuntu5
1:2.11+dfsg-1ubuntu6
1:2.11+dfsg-1ubuntu7
1:2.11+dfsg-1ubuntu7.1
1:2.11+dfsg-1ubuntu7.2
1:2.11+dfsg-1ubuntu7.3
1:2.11+dfsg-1ubuntu7.4
1:2.11+dfsg-1ubuntu7.5
1:2.11+dfsg-1ubuntu7.6
1:2.11+dfsg-1ubuntu7.7
1:2.11+dfsg-1ubuntu7.8
1:2.11+dfsg-1ubuntu7.9
1:2.11+dfsg-1ubuntu7.10
1:2.11+dfsg-1ubuntu7.12
1:2.11+dfsg-1ubuntu7.13
1:2.11+dfsg-1ubuntu7.14
1:2.11+dfsg-1ubuntu7.15
1:2.11+dfsg-1ubuntu7.17
1:2.11+dfsg-1ubuntu7.18
1:2.11+dfsg-1ubuntu7.19
1:2.11+dfsg-1ubuntu7.20
1:2.11+dfsg-1ubuntu7.21
1:2.11+dfsg-1ubuntu7.22
1:2.11+dfsg-1ubuntu7.23
1:2.11+dfsg-1ubuntu7.25
1:2.11+dfsg-1ubuntu7.26
1:2.11+dfsg-1ubuntu7.27
1:2.11+dfsg-1ubuntu7.28
1:2.11+dfsg-1ubuntu7.29
1:2.11+dfsg-1ubuntu7.31
1:2.11+dfsg-1ubuntu7.32
1:2.11+dfsg-1ubuntu7.33
1:2.11+dfsg-1ubuntu7.34
1:2.11+dfsg-1ubuntu7.35
1:2.11+dfsg-1ubuntu7.36

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-block-extra"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-block-extra-dbgsym"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-guest-agent"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-guest-agent-dbgsym"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-kvm"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-arm"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-arm-dbgsym"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-common"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-common-dbgsym"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-mips"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-mips-dbgsym"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-misc"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-misc-dbgsym"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-ppc"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-ppc-dbgsym"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-s390x"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-s390x-dbgsym"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-sparc"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-sparc-dbgsym"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-x86"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-system-x86-dbgsym"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-user"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-user-binfmt"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-user-dbgsym"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-user-static"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-user-static-dbgsym"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-utils"
        },
        {
            "binary_version": "1:2.11+dfsg-1ubuntu7.37",
            "binary_name": "qemu-utils-dbgsym"
        }
    ]
}

Ubuntu:20.04:LTS / qemu

Package

Name
qemu
Purl
pkg:deb/ubuntu/qemu@1:4.2-3ubuntu6.17?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.2-3ubuntu6.17

Affected versions

1:4.*

1:4.0+dfsg-0ubuntu9
1:4.0+dfsg-0ubuntu10
1:4.2-1ubuntu1
1:4.2-1ubuntu2
1:4.2-3ubuntu1
1:4.2-3ubuntu2
1:4.2-3ubuntu3
1:4.2-3ubuntu4
1:4.2-3ubuntu5
1:4.2-3ubuntu6
1:4.2-3ubuntu6.1
1:4.2-3ubuntu6.2
1:4.2-3ubuntu6.3
1:4.2-3ubuntu6.4
1:4.2-3ubuntu6.5
1:4.2-3ubuntu6.6
1:4.2-3ubuntu6.7
1:4.2-3ubuntu6.8
1:4.2-3ubuntu6.9
1:4.2-3ubuntu6.10
1:4.2-3ubuntu6.11
1:4.2-3ubuntu6.12
1:4.2-3ubuntu6.14
1:4.2-3ubuntu6.15
1:4.2-3ubuntu6.16

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-block-extra"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-block-extra-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-guest-agent"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-guest-agent-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-kvm"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-arm"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-arm-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-common"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-common-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-data"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-gui"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-gui-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-mips"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-mips-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-misc"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-misc-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-ppc"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-ppc-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-s390x"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-s390x-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-sparc"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-sparc-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-x86"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-x86-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-x86-microvm"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-x86-microvm-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-x86-xen"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-system-x86-xen-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-user"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-user-binfmt"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-user-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-user-static"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-user-static-dbgsym"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-utils"
        },
        {
            "binary_version": "1:4.2-3ubuntu6.17",
            "binary_name": "qemu-utils-dbgsym"
        }
    ]
}