UBUNTU-CVE-2021-20255

See a problem?
Please try reporting it to the source first.

Source

https://ubuntu.com/security/CVE-2021-20255

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20255.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-20255

Related

CVE-2021-20255

Published

2021-03-09T20:15:00Z

Modified

2024-11-20T12:27:04Z

Severity

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

Summary

[none]

Details

A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

References

Affected packages

Ubuntu:Pro:14.04:LTS / qemu

Package

Name: qemu
Purl: pkg:deb/ubuntu/qemu?arch=src?distro=trusty/esm

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

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:16.04:LTS / qemu

Package

Name: qemu
Purl: pkg:deb/ubuntu/qemu?arch=src?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

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / qemu

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

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

1:2.11+dfsg-1ubuntu7.37

1:2.11+dfsg-1ubuntu7.38

1:2.11+dfsg-1ubuntu7.39

1:2.11+dfsg-1ubuntu7.40

1:2.11+dfsg-1ubuntu7.41

1:2.11+dfsg-1ubuntu7.42

1:2.11+dfsg-1ubuntu7.42+esm1

1:2.11+dfsg-1ubuntu7.42+esm2

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / qemu

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

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

1:4.2-3ubuntu6.17

1:4.2-3ubuntu6.18

1:4.2-3ubuntu6.19

1:4.2-3ubuntu6.21

1:4.2-3ubuntu6.23

1:4.2-3ubuntu6.24

1:4.2-3ubuntu6.25

1:4.2-3ubuntu6.26

1:4.2-3ubuntu6.27

1:4.2-3ubuntu6.28

1:4.2-3ubuntu6.29

1:4.2-3ubuntu6.30

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:22.04:LTS / qemu

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:6.*

1:6.0+dfsg-2expubuntu1

1:6.0+dfsg-2expubuntu2

1:6.0+dfsg-2expubuntu4

1:6.2+dfsg-2ubuntu5

1:6.2+dfsg-2ubuntu6

1:6.2+dfsg-2ubuntu6.1

1:6.2+dfsg-2ubuntu6.2

1:6.2+dfsg-2ubuntu6.3

1:6.2+dfsg-2ubuntu6.4

1:6.2+dfsg-2ubuntu6.5

1:6.2+dfsg-2ubuntu6.6

1:6.2+dfsg-2ubuntu6.7

1:6.2+dfsg-2ubuntu6.8

1:6.2+dfsg-2ubuntu6.9

1:6.2+dfsg-2ubuntu6.10

1:6.2+dfsg-2ubuntu6.11

1:6.2+dfsg-2ubuntu6.12

1:6.2+dfsg-2ubuntu6.13

1:6.2+dfsg-2ubuntu6.14

1:6.2+dfsg-2ubuntu6.15

1:6.2+dfsg-2ubuntu6.16

1:6.2+dfsg-2ubuntu6.17

1:6.2+dfsg-2ubuntu6.18

1:6.2+dfsg-2ubuntu6.19

1:6.2+dfsg-2ubuntu6.21

1:6.2+dfsg-2ubuntu6.22

1:6.2+dfsg-2ubuntu6.23

1:6.2+dfsg-2ubuntu6.24

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.10 / qemu

Package

Name: qemu
Purl: pkg:deb/ubuntu/qemu?arch=src?distro=oracular

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:8.*

1:8.2.2+ds-0ubuntu1

1:9.*

1:9.0.2+ds-4ubuntu2

1:9.0.2+ds-4ubuntu3

1:9.0.2+ds-4ubuntu5

1:9.0.2+ds-4ubuntu5.1

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.04:LTS / qemu

Package

Name: qemu
Purl: pkg:deb/ubuntu/qemu?arch=src?distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:8.*

1:8.0.4+dfsg-1ubuntu3

1:8.0.4+dfsg-1ubuntu4

1:8.0.4+dfsg-1ubuntu5

1:8.1.3+ds-1ubuntu2

1:8.2.1+ds-1ubuntu1

1:8.2.1+ds-1ubuntu8

1:8.2.1+ds-1ubuntu9

1:8.2.2+ds-0ubuntu1

1:8.2.2+ds-0ubuntu1.2

1:8.2.2+ds-0ubuntu1.4

Ecosystem specific

{
    "ubuntu_priority": "medium"
}