CERTA-2002-AVI-253
Vulnerability from certfr_avis - Published: - Updated:
Une vulnérabilité du service xfs permet à un utilisateur mal intentionné d'exécuter du code arbitraire, à distance, sur la machine vulnérable.
Description
Le serveur xfs (XWindow Font Serveur) est utilisé sur les serveurs X Window pour distribuer les polices de caractères aux clients X Window.
Une vulnérabilité de type débordement de mémoire permet à un utilisateur mal intentionné d'exécuter, à distance, du code arbitraire sur la machine vulnérable.
Contournement provisoire
Filtrer au niveau du pare-feu le port 7100/tcp utilisé par xfs afin d'empêcher l'exploitation de cette vulnérabilité depuis l'Internet.
Solution
Se référer aux bulletins de sécurité des différents éditeurs pour l'obtention des correctifs.
NoneImpacted products
References
| Title | Publication Time | Tags | |
|---|---|---|---|
|
|
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{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "HP-UX 10.10, 10.20, 10.24, 11.00, 11.04, 11.11 et 11.22 ;",
"product": {
"name": "N/A",
"vendor": {
"name": "N/A",
"scada": false
}
}
},
{
"description": "Solaris versions 2.5.1 \u00e0 9 ;",
"product": {
"name": "N/A",
"vendor": {
"name": "N/A",
"scada": false
}
}
},
{
"description": "IBM AIX 4.3, 5.1 et 5.2.",
"product": {
"name": "AIX",
"vendor": {
"name": "IBM",
"scada": false
}
}
},
{
"description": "SGI IRIX version 6.5.13 et ant\u00e9rieures ;",
"product": {
"name": "N/A",
"vendor": {
"name": "N/A",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Description\n\nLe serveur xfs (XWindow Font Serveur) est utilis\u00e9 sur les serveurs X\nWindow pour distribuer les polices de caract\u00e8res aux clients X Window.\n\nUne vuln\u00e9rabilit\u00e9 de type d\u00e9bordement de m\u00e9moire permet \u00e0 un utilisateur\nmal intentionn\u00e9 d\u0027ex\u00e9cuter, \u00e0 distance, du code arbitraire sur la\nmachine vuln\u00e9rable.\n\n## Contournement provisoire\n\nFiltrer au niveau du pare-feu le port 7100/tcp utilis\u00e9 par xfs afin\nd\u0027emp\u00eacher l\u0027exploitation de cette vuln\u00e9rabilit\u00e9 depuis l\u0027Internet.\n\n## Solution\n\nSe r\u00e9f\u00e9rer aux bulletins de s\u00e9curit\u00e9 des diff\u00e9rents \u00e9diteurs pour\nl\u0027obtention des correctifs.\n",
"cves": [],
"links": [
{
"title": "Avis de s\u00e9curit\u00e9 \"Solaris fs.auto Remote Compromise Vulnerability\" d\u0027ISS :",
"url": "http://bvlive01.iss.net/issEN/delivery/xforce/alertdetail.jsp?oid=21541"
},
{
"title": "Avis de s\u00e9curit\u00e9 \"Buffer Overflow Vulnerability in X Font Server\" de SGI :",
"url": "ftp://patches.sgi.com/support/free/security/advisories/20021202-01-I"
},
{
"title": "Bulletin de s\u00e9curit\u00e9 HPSBUX0212-228 de Hewlett-Packard :",
"url": "http://itrc.hp.com"
},
{
"title": "Bulletin de s\u00e9curit\u00e9 #48879 de Sun :",
"url": "http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert/48879"
},
{
"title": "Bulletin de s\u00e9curit\u00e9 IBM AIX :",
"url": "http://www-1.ibm.com/services/continuity/recover1.nsf/mss/MSS-OAR-E01-2003.1601.1"
}
],
"reference": "CERTA-2002-AVI-253",
"revisions": [
{
"description": "version initiale.",
"revision_date": "2002-11-27T00:00:00.000000"
},
{
"description": "ajout r\u00e9f\u00e9rence au bulletin de s\u00e9curit\u00e9 #48879 de Sun.",
"revision_date": "2002-11-28T00:00:00.000000"
},
{
"description": "suppression des mentions sp\u00e9cifiques \u00e0 Solaris, ajout r\u00e9f\u00e9rence au bulletin de s\u00e9curit\u00e9 de SGI.",
"revision_date": "2002-12-05T00:00:00.000000"
},
{
"description": "ajout r\u00e9f\u00e9rence au bulletin de s\u00e9curit\u00e9 HPSBUX0212-228 de Hewlett-Packard.",
"revision_date": "2002-12-10T00:00:00.000000"
},
{
"description": "ajout bulletin IBM et r\u00e9f\u00e9rence CVE.",
"revision_date": "2004-01-20T00:00:00.000000"
}
],
"risks": [
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "D\u00e9ni de service"
}
],
"summary": "Une vuln\u00e9rabilit\u00e9 du service xfs permet \u00e0 un utilisateur mal intentionn\u00e9\nd\u0027ex\u00e9cuter du code arbitraire, \u00e0 distance, sur la machine vuln\u00e9rable.\n",
"title": "Vuln\u00e9rabilit\u00e9 de XFS (XWindow Font Server)",
"vendor_advisories": [
{
"published_at": null,
"title": "Avis de s\u00e9curit\u00e9 CA-2002-34 du CERT/CC",
"url": "http://www.cert.org/Advisories/CA-2002-34.html"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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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