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CVE-2022-33742

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).


Affected Software


CPE Name Name Version
xen:xen xen -
linux:linux_kernel linux linux kernel -
fedoraproject:fedora fedoraproject fedora 35
fedoraproject:fedora fedoraproject fedora 36
debian:debian_linux debian debian linux 10.0
debian:debian_linux debian debian linux 11.0

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