<p>Upgrade <code>Amazon-Linux:2</code> <code>kernel-tools-devel</code> to version 0:4.14.287-215.504.amzn2 or higher.<br>This issue was patched in <code>ALAS2-2022-1825</code>.</p>

Improper Cross-boundary Removal of Sensitive Data Affecting kernel-tools-devel package, versions <0:4.14.287-215.504.amzn2

Threat Intelligence

0.06% (29^th percentile)

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Snyk ID SNYK-AMZN2-KERNELTOOLSDEVEL-2957314
published 21 Jul 2022
disclosed 5 Jul 2022

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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 Amazon-Linux:2 kernel-tools-devel to version 0:4.14.287-215.504.amzn2 or higher.
This issue was patched in ALAS2-2022-1825.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-devel package and not the kernel-tools-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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).

References

CVSS Scores

version 3.1

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