VDB
DEBIAN-CVE-2022-33740
DEBIAN-CVE-2022-33740
PUBLISHED
CVSS 7.099999904632568 HIGH
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).
Risk Scores
CVSS v3.1
7.099999904632568
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | xen | 0, 0, 0 |
| Debian:13 | xen | 0, 0, 0 |
| Debian:14 | xen | 0, 0, 0 |
| Debian:11 | linux | 5.10.120-1, 5.10.127-1, 5.10.127-2 |
| Debian:11 | xen | *, 4.20.0~rc2+1-gfcde5e0de8-1~exp1, 4.20.2+37-g61ff35323e-1 |
| Debian:12 | linux | 0, 0, 0 |
| Debian:14 | linux | 0, 0, 0 |
| Debian:13 | linux | 0, 0, 0 |
Timeline
- Jul 5, 2022 CVE Published
- Apr 28, 2026 CVE Updated