CVE-2022-33740
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
- Astra Linux, Debian, Linuxmint, Linux Kernel, Red Os, Suse, Ubuntu, Xen
- Fedoraproject Fedora
- = 35, 36
- CVSS 3.1
- 7.1 HIGH
- EPSS
- 0.3% (25th percentile)
- Weakness
- CWE-212
- NVD status
- Modified
- Published
- 2022-07-05
No indexed exploits for CVE-2022-33740 yet
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No exploit for CVE-2022-33740 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.