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Improper Cross-boundary Removal of Sensitive Data Affecting xen package, versions <4.16.1-r4

Severity

 Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.06% (29th percentile)

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  • Snyk ID SNYK-ALPINE320-XEN-7012623
  • published 23 May 2024
  • disclosed 5 Jul 2022
Report a new vulnerability Found a mistake?

Introduced: 5 Jul 2022

CVE-2022-33740 Open this link in a new tab
CWE-212 Open this link in a new tab

How to fix?

Upgrade Alpine:3.20 xen to version 4.16.1-r4 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:3.20 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
Expand this section

NVD

Recommended
7.1 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    None
  • Availability (A)
    High
Expand this section

SUSE

6.6 medium