Memory Leak Affecting xen package, versions <4.16.1-r3


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-ALPINE316-XEN-2945016
  • published8 Jul 2022
  • disclosed5 Jul 2022

Introduced: 5 Jul 2022

CVE-2022-26365  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade Alpine:3.16 xen to version 4.16.1-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Alpine. See How to fix? for Alpine:3.16 relevant fixed versions and status.

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).

CVSS Scores

version 3.1