UBUNTU-CVE-2021-3696

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Source
https://ubuntu.com/security/CVE-2021-3696
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3696.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-3696
Related
Published
2022-07-06T16:15:00Z
Modified
2024-11-20T12:20:53Z
Severity
  • 4.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Summary
[none]
Details

A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.

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:Pro:16.04:LTS / grub2-signed

Package

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

Affected ranges

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

Affected versions

1.*

1.55
1.56
1.57
1.58
1.59
1.61
1.62
1.63
1.64
1.65
1.66
1.66.1
1.66.2
1.66.6
1.66.7
1.66.8
1.66.9
1.66.11
1.66.12
1.66.14
1.66.15
1.66.16
1.66.17
1.66.18
1.66.19
1.66.20
1.66.21
1.66.22
1.66.23
1.66.26
1.66.27
1.66.28
1.66.29
1.167~16.04.1
1.167~16.04.2
1.167~16.04.4
1.167~16.04.6

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:16.04:LTS / grub2-unsigned

Package

Name
grub2-unsigned
Purl
pkg:deb/ubuntu/grub2-unsigned?arch=src?distro=esm-infra/xenial

Affected ranges

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

Affected versions

2.*

2.04-1ubuntu44
2.04-1ubuntu44.1
2.04-1ubuntu44.1.2

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
1.187.3~18.04.1

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
1.167~18.04.5
1.173.2~18.04.1
1.187.2~18.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.187.3~18.04.1+2.06-2ubuntu14.1",
            "binary_name": "grub-efi-amd64-signed"
        },
        {
            "binary_version": "1.187.3~18.04.1+2.06-2ubuntu14.1",
            "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
2.06-2ubuntu14.1

Affected versions

2.*

2.04-1ubuntu44
2.04-1ubuntu44.1
2.04-1ubuntu44.1.2
2.04-1ubuntu47.4
2.06-2ubuntu14

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-amd64"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-amd64-bin"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-amd64-dbg"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-arm64"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-arm64-bin"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "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
1.187.3~20.04.1

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
1.167.2
1.173.2~20.04.1
1.173.4
1.187.2~20.04.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.187.3~20.04.1+2.06-2ubuntu14.1",
            "binary_name": "grub-efi-amd64-signed"
        },
        {
            "binary_version": "1.187.3~20.04.1+2.06-2ubuntu14.1",
            "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
2.06-2ubuntu14.1

Affected versions

2.*

2.04-1ubuntu44
2.04-1ubuntu44.2
2.04-1ubuntu47.4
2.04-1ubuntu47.5
2.06-2ubuntu14

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-amd64"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-amd64-bin"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-amd64-dbg"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-arm64"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-arm64-bin"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "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
1.187.3~22.04.1

Affected versions

1.*

1.173
1.174
1.176
1.177
1.178
1.179
1.180
1.182~22.04.1
1.187.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.187.3~22.04.1+2.06-2ubuntu14.1",
            "binary_name": "grub-efi-amd64-signed"
        },
        {
            "binary_version": "1.187.3~22.04.1+2.06-2ubuntu14.1",
            "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
2.06-2ubuntu14.1

Affected versions

2.*

2.04-1ubuntu47
2.04-1ubuntu48
2.06-2ubuntu3
2.06-2ubuntu4
2.06-2ubuntu5
2.06-2ubuntu6
2.06-2ubuntu7
2.06-2ubuntu10
2.06-2ubuntu14

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-amd64"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-amd64-bin"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-amd64-dbg"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-arm64"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-arm64-bin"
        },
        {
            "binary_version": "2.06-2ubuntu14.1",
            "binary_name": "grub-efi-arm64-dbg"
        }
    ]
}