certfr_avis - certfr-2023-avi-0340

CERTFR-2023-AVI-0340

Vulnerability from certfr_avis

Une vulnérabilité a été découverte dans Xen. Elle permet 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).

None

Impacted products

	Vendor	Product	Description
	XEN	Xen	Xen versions 4.17.x n'incluant pas le correctif xsa430.patch

References

Title

Publication Time

CVE-2022-42335 (GCVE-0-2022-42335)

Vulnerability from cvelistv5

Published

2023-04-25 00:00

Modified

2024-08-03 13:03

Severity ?

CWE

unknown

Summary

x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest with a PCI device passed through to cause the hypervisor to access an arbitrary pointer partially under guest control.

References

URL

Tags

	https://xenbits.xenproject.org/xsa/advisory-430.txt
	http://xenbits.xen.org/xsa/advisory-430.html
	http://www.openwall.com/lists/oss-security/2023/04/25/1	mailing-list
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PSPFWSY6UOPGMADQGOGN2PAAS5LJRPTG/	vendor-advisory
	https://security.gentoo.org/glsa/202402-07	vendor-advisory

Impacted products

	Vendor	Product	Version
	Xen	xen

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T13:03:45.932Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
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            ],
            "url": "https://xenbits.xenproject.org/xsa/advisory-430.txt"
          },
          {
            "tags": [
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            ],
            "url": "http://xenbits.xen.org/xsa/advisory-430.html"
          },
          {
            "name": "[oss-security] 20230425 Xen Security Advisory 430 v2 (CVE-2022-42335) - x86 shadow paging arbitrary pointer dereference",
            "tags": [
              "mailing-list",
              "x_transferred"
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            "url": "http://www.openwall.com/lists/oss-security/2023/04/25/1"
          },
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            "tags": [
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            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PSPFWSY6UOPGMADQGOGN2PAAS5LJRPTG/"
          },
          {
            "name": "GLSA-202402-07",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202402-07"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "xen",
          "vendor": "Xen",
          "versions": [
            {
              "status": "unknown",
              "version": "consult Xen advisory XSA-430"
            }
          ]
        }
      ],
      "credits": [
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          "lang": "en",
          "value": "{\u0027credit_data\u0027: {\u0027description\u0027: {\u0027description_data\u0027: [{\u0027lang\u0027: \u0027eng\u0027, \u0027value\u0027: \u0027This issue was discovered by Roger Pau Monn\u00e9 of XenServer.\u0027}]}}}"
        }
      ],
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        }
      ],
      "metrics": [
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          "other": {
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                  {
                    "lang": "eng",
                    "value": "Guests running in shadow mode and having a PCI device passed through may be\nable to cause Denial of Service and other problems, escalation of privilege\ncannot be ruled out."
                  }
                ]
              }
            },
            "type": "unknown"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
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        "dateUpdated": "2024-02-04T08:07:20.699893",
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          "url": "https://xenbits.xenproject.org/xsa/advisory-430.txt"
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        },
        {
          "name": "GLSA-202402-07",
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          "url": "https://security.gentoo.org/glsa/202402-07"
        }
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  "cveMetadata": {
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    "dateReserved": "2022-10-03T00:00:00",
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    "state": "PUBLISHED"
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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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