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
Downstream
Related
Published
2021-07-22T20:15:00Z
Modified
2026-06-18T00:30:09Z
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:Pro:20.04:LTS / lwip

Package

Name
lwip
Purl
pkg:deb/ubuntu/lwip?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.1.2+dfsg1-4ubuntu0.1~esm1

Affected versions

2.*
2.1.2-3
2.1.2-5.1
2.1.2+dfsg1-1
2.1.2+dfsg1-4

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "liblwip0",
            "binary_version": "2.1.2+dfsg1-4ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-22284.json"