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high7.1

CVE-2022-33740

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which …

Impact

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 products

VendorProductAffected versions
FedoraprojectFedora
Versions 35, 36
DebianDebian Linux
Versions 10.0, 11.0
LinuxLinux Kernel
from 2.6.13 before 4.9.322
from 4.14 before 4.14.287
from 4.19 before 4.19.251
from 5.4 before 5.4.204
from 5.10 before 5.10.129
from 5.15 before 5.15.53
XenXen
All versions

Weakness classification

CWE-212

References