UBUNTU-CVE-2021-20257

See a problem?
Source
https://ubuntu.com/security/notices/UBUNTU-CVE-2021-20257
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20257.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-20257
Related
Published
2021-02-23T00:00:00Z
Modified
2021-02-23T00:00:00Z
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 infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in processtxdesc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles 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

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

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:16.04:LTS / qemu

Package

Name
qemu

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

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:18.04:LTS / qemu

Package

Name
qemu
Purl
pkg:deb/ubuntu/qemu@1:2.11+dfsg-1ubuntu7.37?arch=src?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",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "qemu-system-misc": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-guest-agent-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-block-extra-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-utils-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-user": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-arm-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-kvm": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-ppc-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-user-static": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-arm": "1:2.11+dfsg-1ubuntu7.37",
            "qemu": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-sparc": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-s390x-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-common-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-x86-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-guest-agent": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-utils": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-block-extra": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-misc-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-sparc-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-mips-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-x86": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-ppc": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-s390x": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-common": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-user-static-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-system-mips": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-user-dbgsym": "1:2.11+dfsg-1ubuntu7.37",
            "qemu-user-binfmt": "1:2.11+dfsg-1ubuntu7.37"
        }
    ]
}

Ubuntu:20.04:LTS / qemu

Package

Name
qemu
Purl
pkg:deb/ubuntu/qemu@1:4.2-3ubuntu6.17?arch=src?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",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "qemu-system-misc": "1:4.2-3ubuntu6.17",
            "qemu-guest-agent-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-block-extra-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-utils-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-user": "1:4.2-3ubuntu6.17",
            "qemu-system-x86-microvm": "1:4.2-3ubuntu6.17",
            "qemu-kvm": "1:4.2-3ubuntu6.17",
            "qemu-system-arm-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-system-ppc-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-user-static": "1:4.2-3ubuntu6.17",
            "qemu-system-arm": "1:4.2-3ubuntu6.17",
            "qemu": "1:4.2-3ubuntu6.17",
            "qemu-system-x86-xen": "1:4.2-3ubuntu6.17",
            "qemu-system-sparc": "1:4.2-3ubuntu6.17",
            "qemu-system-data": "1:4.2-3ubuntu6.17",
            "qemu-system-common-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-system-s390x-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-system-x86-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-system": "1:4.2-3ubuntu6.17",
            "qemu-guest-agent": "1:4.2-3ubuntu6.17",
            "qemu-utils": "1:4.2-3ubuntu6.17",
            "qemu-system-x86-xen-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-block-extra": "1:4.2-3ubuntu6.17",
            "qemu-system-misc-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-system-sparc-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-system-mips-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-system-x86": "1:4.2-3ubuntu6.17",
            "qemu-system-ppc": "1:4.2-3ubuntu6.17",
            "qemu-system-s390x": "1:4.2-3ubuntu6.17",
            "qemu-system-x86-microvm-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-system-common": "1:4.2-3ubuntu6.17",
            "qemu-system-gui-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-user-static-dbgsym": "1:4.2-3ubuntu6.17",
            "qemu-system-mips": "1:4.2-3ubuntu6.17",
            "qemu-system-gui": "1:4.2-3ubuntu6.17",
            "qemu-user-binfmt": "1:4.2-3ubuntu6.17",
            "qemu-user-dbgsym": "1:4.2-3ubuntu6.17"
        }
    ]
}