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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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            "url": "http://openvswitch.org/pipermail/announce/2016-March/000083.html"
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          {
            "name": "85700",
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              "x_refsource_BID",
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          "url": "http://www.debian.org/security/2016/dsa-3533"
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        {
          "tags": [
            "x_refsource_CONFIRM"
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        },
        {
          "name": "RHSA-2016:0523",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
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          "url": "http://rhn.redhat.com/errata/RHSA-2016-0523.html"
        },
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          "tags": [
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            "x_refsource_MLIST"
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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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        "references": [
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            ],
            "url": "https://xenbits.xen.org/xsa/advisory-255.html"
          },
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          "url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html"
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        },
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        },
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          ],
          "url": "https://support.citrix.com/article/CTX232655"
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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
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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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