{"id":"CVE-2022-26365","state":"PUBLISHED","title":"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","description":"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).","publishedAt":"2022-07-05T12:50:28.000Z","updatedAt":"2024-08-03T05:03:32.784Z","severity":null,"assigner":"XEN","products":["Linux Linux","Xen xen"],"affected":[{"vendor":"Linux","product":"Linux","versions":[{"version":"consult Xen advisory XSA-403","status":"unknown"}]},{"vendor":"Xen","product":"xen","versions":[{"version":"consult Xen advisory XSA-403","status":"unknown"}]}],"references":["https://xenbits.xenproject.org/xsa/advisory-403.txt","http://xenbits.xen.org/xsa/advisory-403.html","http://www.openwall.com/lists/oss-security/2022/07/05/6","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/","https://www.debian.org/security/2022/dsa-5191","https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:49.689Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/26xxx/CVE-2022-26365.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-26365","state":"PUBLISHED","datePublished":"2022-07-05T12:50:28.000Z","dateUpdated":"2024-08-03T05:03:32.784Z","assignerShortName":"XEN","assignerOrgId":"23aa2041-22e1-471f-9209-9b7396fa234f","dateReserved":"2022-03-02T00:00:00.000Z"},"containers":{"cna":{"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)."}],"affected":[{"vendor":"Linux","product":"Linux","versions":[{"version":"consult Xen advisory XSA-403","status":"unknown"}]},{"vendor":"Xen","product":"xen","versions":[{"version":"consult Xen advisory XSA-403","status":"unknown"}]}],"references":[{"url":"https://xenbits.xenproject.org/xsa/advisory-403.txt","tags":["x_refsource_MISC"]},{"url":"http://xenbits.xen.org/xsa/advisory-403.html","tags":["x_refsource_CONFIRM"]},{"url":"http://www.openwall.com/lists/oss-security/2022/07/05/6","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":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/","name":"FEDORA-2022-c4ec706488","tags":["vendor-advisory","x_refsource_FEDORA"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/","name":"FEDORA-2022-2c9f8224f8","tags":["vendor-advisory","x_refsource_FEDORA"]},{"url":"https://www.debian.org/security/2022/dsa-5191","name":"DSA-5191","tags":["vendor-advisory","x_refsource_DEBIAN"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html","name":"[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update","tags":["mailing-list","x_refsource_MLIST"]}],"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":{"shortName":"XEN","dateUpdated":"2022-10-02T18:06:21.000Z","orgId":"23aa2041-22e1-471f-9209-9b7396fa234f"},"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.'}]}}}"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security@xen.org","ID":"CVE-2022-26365","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). 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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":[{"title":"CVE Program Container","references":[{"url":"https://xenbits.xenproject.org/xsa/advisory-403.txt","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://xenbits.xen.org/xsa/advisory-403.html","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2022/07/05/6","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":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/","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/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/","name":"FEDORA-2022-2c9f8224f8","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://www.debian.org/security/2022/dsa-5191","name":"DSA-5191","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html","name":"[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update","tags":["mailing-list","x_refsource_MLIST","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T05:03:32.784Z"}}]}}}