UBUNTU-CVE-2021-20225

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Source

https://ubuntu.com/security/CVE-2021-20225

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20225.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-20225

Related

Published

2021-03-02T18:00:00Z

Modified

2024-11-20T12:17:48Z

Severity

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

Summary

[none]

Details

A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

References

Affected packages

Ubuntu:Pro:14.04:LTS / grub2-signed

Package

Name: grub2-signed
Purl: pkg:deb/ubuntu/grub2-signed?arch=src?distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.22

1.23

1.24

1.25

1.26

1.27

1.30

1.31

1.32

1.33

1.34

1.34.1

1.34.2

1.34.3

1.34.4

1.34.5

1.34.6

1.34.7

1.34.8

1.34.9

1.34.13

1.34.14

1.34.16

1.34.17

1.34.18

1.34.20

1.34.22

1.34.24

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:18.04:LTS / grub2-signed

Package

Name: grub2-signed
Purl: pkg:deb/ubuntu/grub2-signed?arch=src?distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.167~18.04.5

Affected versions

1.*

1.85

1.86

1.87

1.89

1.91

1.92

1.93

1.93.1

1.93.2

1.93.3

1.93.4

1.93.5

1.93.7

1.93.8

1.93.10

1.93.11

1.93.13

1.93.14

1.93.15

1.93.16

1.93.18

1.93.19

1.93.20

1.93.21

1.93.22

1.93.24

1.167~18.04.1

1.167~18.04.3

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.167~18.04.5+2.04-1ubuntu44.1.2",
            "binary_name": "grub-efi-amd64-signed"
        },
        {
            "binary_version": "1.167~18.04.5+2.04-1ubuntu44.1.2",
            "binary_name": "grub-efi-arm64-signed"
        }
    ]
}

Ubuntu:18.04:LTS / grub2-unsigned

Package

Name: grub2-unsigned
Purl: pkg:deb/ubuntu/grub2-unsigned?arch=src?distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.04-1ubuntu44.1.2

Affected versions

2.*

2.04-1ubuntu44

2.04-1ubuntu44.1

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.04-1ubuntu44.1.2",
            "binary_name": "grub-efi-amd64"
        },
        {
            "binary_version": "2.04-1ubuntu44.1.2",
            "binary_name": "grub-efi-amd64-bin"
        },
        {
            "binary_version": "2.04-1ubuntu44.1.2",
            "binary_name": "grub-efi-amd64-dbg"
        },
        {
            "binary_version": "2.04-1ubuntu44.1.2",
            "binary_name": "grub-efi-arm64"
        },
        {
            "binary_version": "2.04-1ubuntu44.1.2",
            "binary_name": "grub-efi-arm64-bin"
        },
        {
            "binary_version": "2.04-1ubuntu44.1.2",
            "binary_name": "grub-efi-arm64-dbg"
        }
    ]
}

Ubuntu:20.04:LTS / grub2-signed

Package

Name: grub2-signed
Purl: pkg:deb/ubuntu/grub2-signed?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.167.2

Affected versions

1.*

1.128

1.129

1.130

1.131

1.133

1.134

1.135

1.136

1.137

1.138

1.139

1.140

1.141

1.142

1.142.1

1.142.3

1.142.4

1.142.5

1.142.6

1.142.8

1.142.9

1.142.10

1.142.11

1.167

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.167.2+2.04-1ubuntu44.2",
            "binary_name": "grub-efi-amd64-signed"
        },
        {
            "binary_version": "1.167.2+2.04-1ubuntu44.2",
            "binary_name": "grub-efi-arm64-signed"
        }
    ]
}

Ubuntu:20.04:LTS / grub2-unsigned

Package

Name: grub2-unsigned
Purl: pkg:deb/ubuntu/grub2-unsigned?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.04-1ubuntu44.2

Affected versions

2.*

2.04-1ubuntu44

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.04-1ubuntu44.2",
            "binary_name": "grub-efi-amd64"
        },
        {
            "binary_version": "2.04-1ubuntu44.2",
            "binary_name": "grub-efi-amd64-bin"
        },
        {
            "binary_version": "2.04-1ubuntu44.2",
            "binary_name": "grub-efi-amd64-dbg"
        },
        {
            "binary_version": "2.04-1ubuntu44.2",
            "binary_name": "grub-efi-arm64"
        },
        {
            "binary_version": "2.04-1ubuntu44.2",
            "binary_name": "grub-efi-arm64-bin"
        },
        {
            "binary_version": "2.04-1ubuntu44.2",
            "binary_name": "grub-efi-arm64-dbg"
        }
    ]
}

Ubuntu:22.04:LTS / grub2-signed

Package

Name: grub2-signed
Purl: pkg:deb/ubuntu/grub2-signed?arch=src?distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.180

Affected versions

1.*

1.173

1.174

1.176

1.177

1.178

1.179

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.180+2.06-2ubuntu7",
            "binary_name": "grub-efi-amd64-signed"
        },
        {
            "binary_version": "1.180+2.06-2ubuntu7",
            "binary_name": "grub-efi-arm64-signed"
        }
    ]
}

Ubuntu:22.04:LTS / grub2-unsigned

Package

Name: grub2-unsigned
Purl: pkg:deb/ubuntu/grub2-unsigned?arch=src?distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.06-2ubuntu7

Affected versions

2.*

2.04-1ubuntu47

2.04-1ubuntu48

2.06-2ubuntu3

2.06-2ubuntu4

2.06-2ubuntu5

2.06-2ubuntu6

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.06-2ubuntu7",
            "binary_name": "grub-efi-amd64"
        },
        {
            "binary_version": "2.06-2ubuntu7",
            "binary_name": "grub-efi-amd64-bin"
        },
        {
            "binary_version": "2.06-2ubuntu7",
            "binary_name": "grub-efi-amd64-dbg"
        },
        {
            "binary_version": "2.06-2ubuntu7",
            "binary_name": "grub-efi-arm64"
        },
        {
            "binary_version": "2.06-2ubuntu7",
            "binary_name": "grub-efi-arm64-bin"
        },
        {
            "binary_version": "2.06-2ubuntu7",
            "binary_name": "grub-efi-arm64-dbg"
        }
    ]
}