USN-5197-1

It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. An attacker could use this vulnerability to cause a denial of service. Please see the following link for more information: https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/Log4Shell

References

Affected packages

Ubuntu:20.04:LTS / apache-log4j2

Package

Name: apache-log4j2
Purl: pkg:deb/ubuntu/apache-log4j2@2.16.0-0.20.04.1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.16.0-0.20.04.1

Affected versions

2.*

2.11.1-2

2.11.2-1

2.15.0-0.20.04.1

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.16.0-0.20.04.1",
            "binary_name": "liblog4j2-java"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2021-45046",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}