VDB
ALPINE-CVE-2022-33740
ALPINE-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 3.1
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 |
|---|---|---|
| Alpine:v3.16 | xen | 4.3.0-r0, 0, 4.9.1-r3 |
| Alpine:v3.14 | xen | 4.1.2-r7, 0, 4.0.1-r0 |
| Alpine:v3.17 | xen | 4.15.0-r0, 0, 4.9.1-r3 |
| Alpine:v3.19 | xen | 4.3.0-r2, 4.3.0-r4, 4.3.0-r5 |
| Alpine:v3.24 | xen | 0 |
| Alpine:v3.18 | xen | 4.8.1-r2, 4.0.1-r0, 4.0.1-r1 |
| Alpine:v3.15 | xen | 4.14.0-r2, 0, 4.9.1-r3 |
| Alpine:v3.23 | xen | 0, 0, 4.0.1-r1 |
| Alpine:v3.22 | xen | 4.3.2-r2, 4.3.2-r4, 4.3.3-r0 |
| Alpine:v3.21 | xen | 4.2.2-r11, 0, 4.10.0-r1 |
| Alpine:v3.20 | xen | 4.3.3-r0, 4.14.1-r4, 4.10.0-r3 |
| Alpine:v3.13 | xen | 0, 0, 4.9.1-r3 |
Timeline
- Jul 5, 2022 CVE Published
- Apr 30, 2026 Distribution Patch
- Jun 15, 2026 CVE Updated