cve-2022-33742
Vulnerability from cvelistv5
Published
2022-07-05 12:50
Modified
2024-08-03 08:09
Severity ?
Summary
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).
References
security@xen.orghttp://www.openwall.com/lists/oss-security/2022/07/05/6Mailing List, Patch, Third Party Advisory
security@xen.orghttp://xenbits.xen.org/xsa/advisory-403.htmlPatch, Vendor Advisory
security@xen.orghttps://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlMailing List, Third Party Advisory
security@xen.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/
security@xen.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/
security@xen.orghttps://www.debian.org/security/2022/dsa-5191Third Party Advisory
security@xen.orghttps://xenbits.xenproject.org/xsa/advisory-403.txtVendor Advisory
Impacted products
LinuxLinux
Xenxen
Show details on NVD website

To clipboard 

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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.
  • 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.