CVE-2012-0871 (GCVE-0-2012-0871)
Vulnerability from cvelistv5 – Published: 2014-04-18 14:00 – Updated: 2024-08-06 18:38
VLAI
EPSS
VEX
Summary
The session_link_x11_socket function in login/logind-session.c in systemd-logind in systemd, possibly 37 and earlier, allows local users to create or overwrite arbitrary files via a symlink attack on the X11 user directory in /run/user/.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
5 references
| URL | Tags |
|---|---|
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://cgit.freedesktop.org/systemd/systemd/commi… | x_refsource_CONFIRM |
| https://bugzilla.redhat.com/show_bug.cgi?id=795853 | x_refsource_CONFIRM |
| https://bugzilla.novell.com/show_bug.cgi?id=747154 | x_refsource_CONFIRM |
| http://www.osvdb.org/79768 | vdb-entryx_refsource_OSVDB |
Date Public
2012-02-29 00:00
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"criteria": "cpe:2.3:a:systemd_project:systemd:23:*:*:*:*:*:*:*",
"matchCriteriaId": "421D9E8B-78EC-40A1-B9FF-A97A02C62516",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:24:*:*:*:*:*:*:*",
"matchCriteriaId": "73F57756-778D-4EB0-B0E5-B8B5D92705F6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:25:*:*:*:*:*:*:*",
"matchCriteriaId": "64D83463-13ED-430C-8C40-2237DF0E3643",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:26:*:*:*:*:*:*:*",
"matchCriteriaId": "79AF61C4-416D-451A-AACC-16F58341583F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:27:*:*:*:*:*:*:*",
"matchCriteriaId": "EC4E6FD6-1682-45D8-ABE1-AF3246ED19F7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:28:*:*:*:*:*:*:*",
"matchCriteriaId": "2F122D3A-BA34-47C7-88D6-E6D95336B9C4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:29:*:*:*:*:*:*:*",
"matchCriteriaId": "19083D70-7A2E-4064-9145-1B446732BEC9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:30:*:*:*:*:*:*:*",
"matchCriteriaId": "187847B5-8B9C-43F2-A473-53618ADE5B46",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:31:*:*:*:*:*:*:*",
"matchCriteriaId": "08D20503-7386-4883-9BE6-6393783E5E61",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:32:*:*:*:*:*:*:*",
"matchCriteriaId": "023D79B4-A812-453E-B255-92787C3D2F24",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:33:*:*:*:*:*:*:*",
"matchCriteriaId": "BE7541DE-707D-4D9A-943E-F664B4A8E269",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:34:*:*:*:*:*:*:*",
"matchCriteriaId": "ADB3E996-91FD-43F5-BE5D-860F4BE3E79B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:35:*:*:*:*:*:*:*",
"matchCriteriaId": "57EC044B-6556-4CE2-B3DB-C03D9D9983CB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:systemd_project:systemd:36:*:*:*:*:*:*:*",
"matchCriteriaId": "D59DCAD7-7C82-41A2-89BA-4F05BEC08106",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:opensuse:opensuse:12.1:*:*:*:*:*:*:*",
"matchCriteriaId": "EBB2C482-D2A4-48B3-ACE7-E1DFDCC409B5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The session_link_x11_socket function in login/logind-session.c in systemd-logind in systemd, possibly 37 and earlier, allows local users to create or overwrite arbitrary files via a symlink attack on the X11 user directory in /run/user/."
},
{
"lang": "es",
"value": "La funci\u00f3n session_link_x11_socket en login/logind-session.c en systemd-logind en systemd, posiblemente 37 y anteriores, permite a usuarios locales crear o sobrescribir archivos arbitrarios a trav\u00e9s de un ataque symlink sobre el directorio de usuario X11 en /run/user/."
}
],
"id": "CVE-2012-0871",
"lastModified": "2026-05-06T22:30:45.220",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 6.3,
"confidentialityImpact": "NONE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:M/Au:N/C:N/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.4,
"impactScore": 9.2,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2014-04-18T14:55:25.227",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://cgit.freedesktop.org/systemd/systemd/commit/?id=fc3c1c6e091ea16ad5600b145201ec535bbb5d7c"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00030.html"
},
{
"source": "secalert@redhat.com",
"url": "http://www.osvdb.org/79768"
},
{
"source": "secalert@redhat.com",
"url": "https://bugzilla.novell.com/show_bug.cgi?id=747154"
},
{
"source": "secalert@redhat.com",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=795853"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://cgit.freedesktop.org/systemd/systemd/commit/?id=fc3c1c6e091ea16ad5600b145201ec535bbb5d7c"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00030.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.osvdb.org/79768"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.novell.com/show_bug.cgi?id=747154"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=795853"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-59"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-11-21T12:33:16+00:00",
"cve": "CVE-2012-0871",
"id": "CVE-2012-0871",
"initial_release_date": "2012-02-29T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "systemd: insecure file creation may lead to elevated privileges",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2012/cve-2012-0871.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2024-04-03T02:29:29Z",
"cve": "CVE-2012-0871",
"id": "CVE-2012-0871",
"initial_release_date": "2023-02-15T05:48:27Z",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2012-0871",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2012-0871.json",
"version": "5"
}
}
}
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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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