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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2022-33740
HistoryJul 05, 2022 - 1:15 p.m.

CVE-2022-33740

2022-07-0513:15:00
Debian Security Bug Tracker
security-tracker.debian.org
39

0.001 Low

EPSS

Percentile

27.1%

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).