UBUNTU-CVE-2020-22284

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2020-22284
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-22284.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-22284
Upstream
Published
2021-07-22T20:15:00Z
Modified
2025-10-24T04:48:39Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A buffer overflow vulnerability in the zepif_linkoutput() function of Free Software Foundation lwIP git head version and version 2.1.2 allows attackers to access sensitive information via a crafted 6LoWPAN packet.

References

Affected packages

Ubuntu:20.04:LTS / lwip

Package

Name
lwip
Purl
pkg:deb/ubuntu/lwip@2.1.2+dfsg1-4?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*

2.1.2-3
2.1.2-5.1
2.1.2+dfsg1-1
2.1.2+dfsg1-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblwip-dev",
            "binary_version": "2.1.2+dfsg1-4"
        },
        {
            "binary_name": "liblwip0",
            "binary_version": "2.1.2+dfsg1-4"
        }
    ]
}

Ubuntu:22.04:LTS / lwip

Package

Name
lwip
Purl
pkg:deb/ubuntu/lwip@2.1.3+dfsg1-1?arch=source&distro=jammy

Affected ranges

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

Affected versions

2.*

2.1.2+dfsg1-8
2.1.2+dfsg1-9
2.1.3+dfsg1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblwip-dev",
            "binary_version": "2.1.3+dfsg1-1"
        },
        {
            "binary_name": "liblwip0",
            "binary_version": "2.1.3+dfsg1-1"
        }
    ]
}

Ubuntu:24.04:LTS / lwip

Package

Name
lwip
Purl
pkg:deb/ubuntu/lwip@2.2.0+dfsg1-6.1build2?arch=source&distro=noble

Affected ranges

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

Affected versions

2.*

2.1.3+dfsg1-2
2.1.3+dfsg1-4
2.2.0+dfsg1-2
2.2.0+dfsg1-3
2.2.0+dfsg1-4
2.2.0+dfsg1-5
2.2.0+dfsg1-6
2.2.0+dfsg1-6.1
2.2.0+dfsg1-6.1build1
2.2.0+dfsg1-6.1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblwip-dev",
            "binary_version": "2.2.0+dfsg1-6.1build2"
        },
        {
            "binary_name": "liblwip0t64",
            "binary_version": "2.2.0+dfsg1-6.1build2"
        }
    ]
}

Ubuntu:25.10 / lwip

Package

Name
lwip
Purl
pkg:deb/ubuntu/lwip@2.2.1+dfsg1-2?arch=source&distro=questing

Affected ranges

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

Affected versions

2.*

2.2.1+dfsg1-1
2.2.1+dfsg1-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblwip-dev",
            "binary_version": "2.2.1+dfsg1-2"
        },
        {
            "binary_name": "liblwip0t64",
            "binary_version": "2.2.1+dfsg1-2"
        }
    ]
}

Ubuntu:25.04 / lwip

Package

Name
lwip
Purl
pkg:deb/ubuntu/lwip@2.2.1+dfsg1-1?arch=source&distro=plucky

Affected ranges

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

Affected versions

2.*

2.2.0+dfsg1-7
2.2.0+dfsg1-8
2.2.0+dfsg1-9
2.2.1+dfsg1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblwip-dev",
            "binary_version": "2.2.1+dfsg1-1"
        },
        {
            "binary_name": "liblwip0t64",
            "binary_version": "2.2.1+dfsg1-1"
        }
    ]
}