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CERTFR-2014-AVI-402
Vulnerability from certfr_avis
De multiples vulnérabilités ont été corrigées dans Xen. Elles permettent à un attaquant de provoquer un déni de service et une élévation de privilèges.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Xen à partir de la version 3.2.x
Impacted products
| Vendor | Product | Description |
|---|
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [],
"affected_systems_content": "\u003cP\u003eXen \u00e0 partir de la version 3.2.x\u003c/P\u003e",
"content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
"cves": [
{
"name": "CVE-2014-7156",
"url": "https://www.cve.org/CVERecord?id=CVE-2014-7156"
},
{
"name": "CVE-2014-7155",
"url": "https://www.cve.org/CVERecord?id=CVE-2014-7155"
},
{
"name": "CVE-2014-7154",
"url": "https://www.cve.org/CVERecord?id=CVE-2014-7154"
}
],
"initial_release_date": "2014-09-25T00:00:00",
"last_revision_date": "2014-09-25T00:00:00",
"links": [],
"reference": "CERTFR-2014-AVI-402",
"revisions": [
{
"description": "version initiale.",
"revision_date": "2014-09-25T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 corrig\u00e9es dans \u003cspan\nclass=\"textit\"\u003eXen\u003c/span\u003e. Elles permettent \u00e0 un attaquant de provoquer\nun d\u00e9ni de service et une \u00e9l\u00e9vation de privil\u00e8ges.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Xen",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen XSA-104 du 23 septembre 2014",
"url": "http://xenbits.xen.org/xsa/advisory-104.html"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen XSA-105 du 23 septembre 2014",
"url": "http://xenbits.xen.org/xsa/advisory-105.html"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen XSA-106 du 23 septembre 2014",
"url": "http://xenbits.xen.org/xsa/advisory-106.html"
}
]
}
CVE-2014-7154 (GCVE-0-2014-7154)
Vulnerability from cvelistv5
Published
2014-10-02 14:00
Modified
2024-08-06 12:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Race condition in HVMOP_track_dirty_vram in Xen 4.0.0 through 4.4.x does not ensure possession of the guarding lock for dirty video RAM tracking, which allows certain local guest domains to cause a denial of service via unspecified vectors.
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
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CVE-2014-7156 (GCVE-0-2014-7156)
Vulnerability from cvelistv5
Published
2014-10-02 14:00
Modified
2024-08-06 12:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.
References
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"url": "http://support.citrix.com/article/CTX200218"
},
{
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CVE-2014-7155 (GCVE-0-2014-7155)
Vulnerability from cvelistv5
Published
2014-10-02 14:00
Modified
2024-08-06 12:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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