{"containers":{"cna":{"affected":[{"product":"Linux","vendor":"Linux","versions":[{"status":"unknown","version":"consult Xen advisory XSA-403"}]},{"product":"xen","vendor":"Xen","versions":[{"status":"unknown","version":"consult Xen advisory XSA-403"}]}],"credits":[{"lang":"en","value":"{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'The issue related to not zeroing memory areas used for shared communications\\nwas discovered by Roger Pau Monné of Citrix.\\n\\nThe issue related to leaking contiguous data in granted pages was disclosed\\npublicly.'}]}}}"}],"descriptions":[{"lang":"en","value":"Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742)."}],"metrics":[{"other":{"content":{"description":{"description_data":[{"lang":"eng","value":"An untrusted backend can access data not intended to be shared.  If such\nmappings are made with write permissions the backend could also cause\nmalfunctions and/or crashes to consumers of contiguous data in the shared\npages."}]}},"type":"unknown"}}],"problemTypes":[{"descriptions":[{"description":"unknown","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2022-10-02T18:06:05.000Z","orgId":"23aa2041-22e1-471f-9209-9b7396fa234f","shortName":"XEN"},"references":[{"tags":["x_refsource_MISC"],"url":"https://xenbits.xenproject.org/xsa/advisory-403.txt"},{"tags":["x_refsource_CONFIRM"],"url":"http://xenbits.xen.org/xsa/advisory-403.html"},{"name":"[oss-security] 20220705 Xen Security Advisory 403 v3 (CVE-2022-26365,CVE-2022-33740,CVE-2022-33741,CVE-2022-33742) - Linux disk/nic frontends data leaks","tags":["mailing-list","x_refsource_MLIST"],"url":"http://www.openwall.com/lists/oss-security/2022/07/05/6"},{"name":"FEDORA-2022-c4ec706488","tags":["vendor-advisory","x_refsource_FEDORA"],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/"},{"name":"FEDORA-2022-2c9f8224f8","tags":["vendor-advisory","x_refsource_FEDORA"],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/"},{"name":"DSA-5191","tags":["vendor-advisory","x_refsource_DEBIAN"],"url":"https://www.debian.org/security/2022/dsa-5191"},{"name":"[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update","tags":["mailing-list","x_refsource_MLIST"],"url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security@xen.org","ID":"CVE-2022-33742","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Linux","version":{"version_data":[{"version_affected":"?","version_value":"consult Xen advisory XSA-403"}]}}]},"vendor_name":"Linux"},{"product":{"product_data":[{"product_name":"xen","version":{"version_data":[{"version_affected":"?","version_value":"consult Xen advisory XSA-403"}]}}]},"vendor_name":"Xen"}]}},"configuration":{"configuration_data":{"description":{"description_data":[{"lang":"eng","value":"All Linux guests using PV devices are vulnerable in case potentially\nmalicious PV device backends are being used."}]}}},"credit":{"credit_data":{"description":{"description_data":[{"lang":"eng","value":"The issue related to not zeroing memory areas used for shared communications\nwas discovered by Roger Pau Monné of Citrix.\n\nThe issue related to leaking contiguous data in granted pages was disclosed\npublicly."}]}}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742)."}]},"impact":{"impact_data":{"description":{"description_data":[{"lang":"eng","value":"An untrusted backend can access data not intended to be shared.  If such\nmappings are made with write permissions the backend could also cause\nmalfunctions and/or crashes to consumers of contiguous data in the shared\npages."}]}}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"unknown"}]}]},"references":{"reference_data":[{"name":"https://xenbits.xenproject.org/xsa/advisory-403.txt","refsource":"MISC","url":"https://xenbits.xenproject.org/xsa/advisory-403.txt"},{"name":"http://xenbits.xen.org/xsa/advisory-403.html","refsource":"CONFIRM","url":"http://xenbits.xen.org/xsa/advisory-403.html"},{"name":"[oss-security] 20220705 Xen Security Advisory 403 v3 (CVE-2022-26365,CVE-2022-33740,CVE-2022-33741,CVE-2022-33742) - Linux disk/nic frontends data leaks","refsource":"MLIST","url":"http://www.openwall.com/lists/oss-security/2022/07/05/6"},{"name":"FEDORA-2022-c4ec706488","refsource":"FEDORA","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/"},{"name":"FEDORA-2022-2c9f8224f8","refsource":"FEDORA","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/"},{"name":"DSA-5191","refsource":"DEBIAN","url":"https://www.debian.org/security/2022/dsa-5191"},{"name":"[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update","refsource":"MLIST","url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html"}]},"workaround":{"workaround_data":{"description":{"description_data":[{"lang":"eng","value":"There is no mitigation available other than not using PV devices in case\na backend is suspected to be potentially malicious."}]}}}}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T08:09:22.683Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_MISC","x_transferred"],"url":"https://xenbits.xenproject.org/xsa/advisory-403.txt"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://xenbits.xen.org/xsa/advisory-403.html"},{"name":"[oss-security] 20220705 Xen Security Advisory 403 v3 (CVE-2022-26365,CVE-2022-33740,CVE-2022-33741,CVE-2022-33742) - Linux disk/nic frontends data leaks","tags":["mailing-list","x_refsource_MLIST","x_transferred"],"url":"http://www.openwall.com/lists/oss-security/2022/07/05/6"},{"name":"FEDORA-2022-c4ec706488","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/"},{"name":"FEDORA-2022-2c9f8224f8","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/"},{"name":"DSA-5191","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"],"url":"https://www.debian.org/security/2022/dsa-5191"},{"name":"[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update","tags":["mailing-list","x_refsource_MLIST","x_transferred"],"url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html"}]}]},"cveMetadata":{"assignerOrgId":"23aa2041-22e1-471f-9209-9b7396fa234f","assignerShortName":"XEN","cveId":"CVE-2022-33742","datePublished":"2022-07-05T12:50:39.000Z","dateReserved":"2022-06-15T00:00:00.000Z","dateUpdated":"2024-08-03T08:09:22.683Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}