Tracker / CVE-2022-33742
CVE-2022-33742
High 7.1
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).
Affected products and versions
| debian | debian_linux |
|---|---|
| fedoraproject | fedora |
| linux | linux_kernel |
| linux | linux_kernel · 2.6.13 → 4.9.322 |
| linux | linux_kernel · 4.14 → 4.14.287 |
| linux | linux_kernel · 4.19 → 4.19.251 |
| linux | linux_kernel · 5.10 → 5.10.129 |
| linux | linux_kernel · 5.15 → 5.15.53 |
| linux | linux_kernel · 5.18 → 5.18.10 |
| linux | linux_kernel · 5.4 → 5.4.204 |
| xen | xen |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.