certfr_avis - certfr-2025-avi-0395

CERTFR-2025-AVI-0395

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité a été découverte dans les produits Citrix. Elle permet à un attaquant de provoquer une atteinte à la confidentialité des données.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

L'éditeur rappelle que Citrix Hypervisor 8.2CU1 ne recevra plus de mises à jour de sécurité après le 25 juin 2025 et recommande de migrer vers XenServer 8.4, qui est supporté jusqu'au 30 novembre 2028.

Impacted products

	Vendor	Product	Description
	Citrix	XenServer	XenServer 8.4 sans le dernier correctif de sécurité
	Citrix	Citrix Hypervisor	Citrix Hypervisor 8.2 CU1 LTSR sans le dernier correctif de sécurité

References

Title

Publication Time

Tags

Bulletin de sécurité Citrix CTX693178

2025-05-12

vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "XenServer 8.4 sans le dernier correctif de s\u00e9curit\u00e9",
      "product": {
        "name": "XenServer",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "Citrix Hypervisor 8.2 CU1 LTSR sans le dernier correctif de s\u00e9curit\u00e9",
      "product": {
        "name": "Citrix Hypervisor",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "L\u0027\u00e9diteur rappelle que Citrix Hypervisor 8.2CU1 ne recevra plus de mises \u00e0 jour de s\u00e9curit\u00e9 apr\u00e8s le 25 juin 2025 et recommande de migrer vers XenServer 8.4, qui est support\u00e9 jusqu\u0027au 30 novembre 2028.",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2024-28956",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-28956"
    }
  ],
  "links": [],
  "reference": "CERTFR-2025-AVI-0395",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2025-05-13T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans les produits Citrix. Elle permet \u00e0 un attaquant de provoquer une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
  "title": "Vuln\u00e9rabilit\u00e9 dans les produits Citrix",
  "vendor_advisories": [
    {
      "published_at": "2025-05-12",
      "title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX693178",
      "url": "https://support.citrix.com/s/article/CTX693178-xenserver-and-citrix-hypervisor-security-update-for-cve202428956"
    }
  ]
}

CVE-2024-28956 (GCVE-0-2024-28956)

Vulnerability from cvelistv5 – Published: 2025-05-13 21:02 – Updated: 2025-11-03 19:29

Summary

Exposure of Sensitive Information in Shared Microarchitectural Structures during Transient Execution for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

Severity ?

5.6 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

CWE

Information Disclosure
CWE-1421 - Exposure of Sensitive Information in Shared Microarchitectural Structures during Transient Execution

Assigner

intel

References

URL

Tags

https://intel.com/content/www/us/en/security-cent…

Impacted products

	Vendor	Product	Version
	n/a	Intel(R) Processors	Affected: See references

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T19:29:44.255Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://xenbits.xen.org/xsa/advisory-469.html"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/05/12/5"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00021.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-28956",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-14T14:42:03.518493Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-14T14:43:48.581Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Intel(R) Processors",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "See references"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Exposure of Sensitive Information in Shared Microarchitectural Structures during Transient Execution for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          },
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Information Disclosure",
              "lang": "en"
            },
            {
              "cweId": "CWE-1421",
              "description": "Exposure of Sensitive Information in Shared Microarchitectural Structures during Transient Execution",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-13T21:02:56.170Z",
        "orgId": "6dda929c-bb53-4a77-a76d-48e79601a1ce",
        "shortName": "intel"
      },
      "references": [
        {
          "name": "https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01153.html",
          "url": "https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01153.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6dda929c-bb53-4a77-a76d-48e79601a1ce",
    "assignerShortName": "intel",
    "cveId": "CVE-2024-28956",
    "datePublished": "2025-05-13T21:02:56.170Z",
    "dateReserved": "2024-05-23T17:14:54.799Z",
    "dateUpdated": "2025-11-03T19:29:44.255Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CERTFR-2025-AVI-0395

Solutions

CVE-2024-28956 (GCVE-0-2024-28956)

Tags

Sightings

Nomenclature