{"id":"CVE-2022-42335","state":"PUBLISHED","title":"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","description":"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.","publishedAt":"2023-04-25T00:00:00.000Z","updatedAt":"2024-08-03T13:03:45.932Z","severity":null,"assigner":"XEN","products":["Xen xen"],"affected":[{"vendor":"Xen","product":"xen","versions":[{"version":"consult Xen advisory XSA-430","status":"unknown"}]}],"references":["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","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PSPFWSY6UOPGMADQGOGN2PAAS5LJRPTG/","https://security.gentoo.org/glsa/202402-07"],"weaknesses":[],"ingestedAt":"2026-10-29T19:50:40.706Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/42xxx/CVE-2022-42335.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-42335","state":"PUBLISHED","datePublished":"2023-04-25T00:00:00.000Z","dateUpdated":"2024-08-03T13:03:45.932Z","assignerShortName":"XEN","assignerOrgId":"23aa2041-22e1-471f-9209-9b7396fa234f","dateReserved":"2022-10-03T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Xen","product":"xen","versions":[{"version":"consult Xen advisory XSA-430","status":"unknown"}]}],"references":[{"url":"https://xenbits.xenproject.org/xsa/advisory-430.txt"},{"url":"http://xenbits.xen.org/xsa/advisory-430.html"},{"url":"http://www.openwall.com/lists/oss-security/2023/04/25/1","name":"[oss-security] 20230425 Xen Security Advisory 430 v2 (CVE-2022-42335) - x86 shadow paging arbitrary pointer dereference","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PSPFWSY6UOPGMADQGOGN2PAAS5LJRPTG/","name":"FEDORA-2023-d28433ead1","tags":["vendor-advisory"]},{"url":"https://security.gentoo.org/glsa/202402-07","name":"GLSA-202402-07","tags":["vendor-advisory"]}],"metrics":[{"other":{"type":"unknown","content":{"description":{"description_data":[{"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."}]}}}}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"unknown"}]}],"providerMetadata":{"shortName":"XEN","orgId":"23aa2041-22e1-471f-9209-9b7396fa234f","dateUpdated":"2024-02-04T08:07:20.699Z"},"credits":[{"lang":"en","value":"{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'This issue was discovered by Roger Pau Monné of XenServer.'}]}}}"}]},"adp":[{"title":"CVE Program Container","references":[{"url":"https://xenbits.xenproject.org/xsa/advisory-430.txt","tags":["x_transferred"]},{"url":"http://xenbits.xen.org/xsa/advisory-430.html","tags":["x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2023/04/25/1","name":"[oss-security] 20230425 Xen Security Advisory 430 v2 (CVE-2022-42335) - x86 shadow paging arbitrary pointer dereference","tags":["mailing-list","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PSPFWSY6UOPGMADQGOGN2PAAS5LJRPTG/","name":"FEDORA-2023-d28433ead1","tags":["vendor-advisory","x_transferred"]},{"url":"https://security.gentoo.org/glsa/202402-07","name":"GLSA-202402-07","tags":["vendor-advisory","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T13:03:45.932Z"}}]}}}