UBUNTU-CVE-2019-20373

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Source
https://ubuntu.com/security/CVE-2019-20373
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20373.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-20373
Upstream
  • CVE-2019-20373
Related
Published
2020-01-09T23:15:00Z
Modified
2026-02-04T04:31:51Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

LTSP LDM through 2.18.06 allows fat-client root access because the LDM_USERNAME variable may have an empty value if the user's shell lacks support for Bourne shell syntax. This is related to a run-x-session script.

References

Affected packages

Ubuntu:16.04:LTS / ldm

Package

Name
ldm
Purl
pkg:deb/ubuntu/ldm@2:2.2.18-1?arch=source&distro=xenial

Affected ranges

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

Affected versions

2:2.*
2:2.2.17-1
2:2.2.18-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ldm",
            "binary_version": "2:2.2.18-1"
        },
        {
            "binary_name": "ldm-server",
            "binary_version": "2:2.2.18-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20373.json"

Ubuntu:18.04:LTS / ldm

Package

Name
ldm
Purl
pkg:deb/ubuntu/ldm@2:2.2.19-1?arch=source&distro=bionic

Affected ranges

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

Affected versions

2:2.*
2:2.2.18-2
2:2.2.19-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ldm",
            "binary_version": "2:2.2.19-1"
        },
        {
            "binary_name": "ldm-server",
            "binary_version": "2:2.2.19-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20373.json"

Ubuntu:20.04:LTS / ldm

Package

Name
ldm
Purl
pkg:deb/ubuntu/ldm@2:2.18.06-1+deb10u1build0.20.04.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:2.18.06-1+deb10u1build0.20.04.1

Affected versions

2:2.*
2:2.18.06-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "ldm",
            "binary_version": "2:2.18.06-1+deb10u1build0.20.04.1"
        },
        {
            "binary_name": "ldm-server",
            "binary_version": "2:2.18.06-1+deb10u1build0.20.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20373.json"