🛡️ CVE-2022-26365 — debian-linux
Description
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).
How this vulnerability can be exploited
This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability high.
Weakness class
CVE-2022-26365 is classified as CWE-401: Memory Leak. Allocated memory is never released, so long-running or repeated operations gradually exhaust it.
Affected software
CVE-2022-26365 is recorded against 4 packages.
- debian-linux
- fedora
- linux-kernel
- xen
Timeline and source
Published on 5 July 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.
References
www.openwall.com
xenbits.xen.org
lists.debian.org
lists.fedoraproject.org
lists.fedoraproject.org
www.debian.org
xenbits.xenproject.org
www.openwall.com
xenbits.xen.org
lists.debian.org
lists.fedoraproject.org
lists.fedoraproject.org
www.debian.org
xenbits.xenproject.org
CVE-2022-26365 on other distributions
Each distribution ships its own build and its own fixed version. Pick the one you run:
Details
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| debian-linux | — | — |
| fedora | — | — |
| linux-kernel | — | — |
| xen | — | — |
References
Similar Threats
- Critical CVE-2022-0194
- High CVE-2022-0367
- Medium CVE-2022-0171
- High CVE-2022-0135
- High CVE-2022-0204
More CVE 2022 advisories
Browse all of CVE 2022 in the advisory index.
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