UBUNTU-CVE-2021-42550

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Source
https://ubuntu.com/security/CVE-2021-42550
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42550.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-42550
Upstream
Downstream
Related
Published
2021-12-16T19:15:00Z
Modified
2025-07-18T16:47:01Z
Severity
  • 6.6 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 6.6 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In logback version 1.2.7 and prior versions, an attacker with the required privileges to edit configurations files could craft a malicious configuration allowing to execute arbitrary code loaded from LDAP servers.

References

Affected packages

Ubuntu:Pro:16.04:LTS / logback

Package

Name
logback
Purl
pkg:deb/ubuntu/logback@1:1.1.3-2ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.1.3-2ubuntu0.1~esm1

Affected versions

1:1.*

1:1.1.3-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:1.1.3-2ubuntu0.1~esm1",
            "binary_name": "liblogback-java"
        },
        {
            "binary_version": "1:1.1.3-2ubuntu0.1~esm1",
            "binary_name": "liblogback-java-doc"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Ubuntu:Pro:18.04:LTS / logback

Package

Name
logback
Purl
pkg:deb/ubuntu/logback@1:1.2.3-2ubuntu1~18.04.1+esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.2.3-2ubuntu1~18.04.1+esm1

Affected versions

1:1.*

1:1.1.9-4
1:1.1.9-5
1:1.2.3-2
1:1.2.3-2ubuntu1~18.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:1.2.3-2ubuntu1~18.04.1+esm1",
            "binary_name": "liblogback-java"
        },
        {
            "binary_version": "1:1.2.3-2ubuntu1~18.04.1+esm1",
            "binary_name": "liblogback-java-doc"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Ubuntu:Pro:20.04:LTS / logback

Package

Name
logback
Purl
pkg:deb/ubuntu/logback@1:1.2.3-5ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.2.3-5ubuntu0.1~esm1

Affected versions

1:1.*

1:1.2.3-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:1.2.3-5ubuntu0.1~esm1",
            "binary_name": "liblogback-java"
        },
        {
            "binary_version": "1:1.2.3-5ubuntu0.1~esm1",
            "binary_name": "liblogback-java-doc"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}