USN-4533-1
Vulnerability from osv_ubuntu – Published: 2020-09-22 20:02 – Updated: 2026-02-10 04:41 – Source website
VLAI
Summary
ldm vulnerabilities
Details
Veeti Veteläinen discovered that the LTSP Display Manager (ldm) incorrectly handled user logins from unsupported shells. A local attacker could possibly use this issue to gain root privileges. (CVE-2019-20373)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [],
"ecosystem": "Ubuntu:20.04:LTS"
}
},
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "ldm",
"purl": "pkg:deb/ubuntu/ldm@2:2.18.06-1+deb10u1build0.20.04.1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:2.18.06-1+deb10u1build0.20.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:2.18.06-1"
]
}
],
"aliases": [],
"details": "Veeti Vetel\u00e4inen discovered that the LTSP Display Manager (ldm)\nincorrectly handled user logins from unsupported shells. A local attacker\ncould possibly use this issue to gain root privileges. (CVE-2019-20373)\n",
"id": "USN-4533-1",
"modified": "2026-02-10T04:41:56Z",
"published": "2020-09-22T20:02:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4533-1"
},
{
"type": "REPORT",
"url": "https://launchpad.net/bugs/1839431"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "ldm vulnerabilities",
"upstream": []
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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