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CERTFR-2018-AVI-145
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans Citrix XenServer. Elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance et un déni de service à distance.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Citrix | XenServer | Citrix XenServer 7.1 LTSR CU1 sans le dernier correctif de sécurité | ||
| Citrix | XenServer | Citrix XenServer 7.3 sans le dernier correctif de sécurité | ||
| Citrix | XenServer | Citrix XenServer 7.2 sans le dernier correctif de sécurité | ||
| Citrix | XenServer | Citrix XenServer 7.0 sans le dernier correctif de sécurité |
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Citrix XenServer 7.1 LTSR CU1 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "XenServer",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "Citrix XenServer 7.3 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "XenServer",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "Citrix XenServer 7.2 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "XenServer",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "Citrix XenServer 7.0 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "XenServer",
"vendor": {
"name": "Citrix",
"scada": false
}
}
}
],
"affected_systems_content": null,
"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-2018-7541",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-7541"
},
{
"name": "CVE-2018-7540",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-7540"
},
{
"name": "CVE-2016-2074",
"url": "https://www.cve.org/CVERecord?id=CVE-2016-2074"
}
],
"initial_release_date": "2018-03-22T00:00:00",
"last_revision_date": "2018-03-22T00:00:00",
"links": [],
"reference": "CERTFR-2018-AVI-145",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2018-03-22T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Citrix XenServer.\nElles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code\narbitraire \u00e0 distance et un d\u00e9ni de service \u00e0 distance.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Citrix XenServer",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX232655 du 21 mars 2018",
"url": "https://support.citrix.com/article/CTX232655"
}
]
}
CVE-2016-2074 (GCVE-0-2016-2074)
Vulnerability from cvelistv5
Published
2016-07-03 21:00
Modified
2024-08-05 23:17
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Buffer overflow in lib/flow.c in ovs-vswitchd in Open vSwitch 2.2.x and 2.3.x before 2.3.3 and 2.4.x before 2.4.1 allows remote attackers to execute arbitrary code via crafted MPLS packets, as demonstrated by a long string in an ovs-appctl command.
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||
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CVE-2018-7541 (GCVE-0-2018-7541)
Vulnerability from cvelistv5
Published
2018-02-27 19:00
Modified
2024-08-05 06:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.10.x allowing guest OS users to cause a denial of service (hypervisor crash) or gain privileges by triggering a grant-table transition from v2 to v1.
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
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CVE-2018-7540 (GCVE-0-2018-7540)
Vulnerability from cvelistv5
Published
2018-02-27 19:00
Modified
2024-08-05 06:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
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{
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"url": "https://support.citrix.com/article/CTX232655"
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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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