<p>Upgrade <code>Rocky-Linux:8</code> <code>kernel-tools</code> to version 0:4.18.0-348.20.1.el8_5 or higher.<br>This issue was patched in <code>RLSA-2022:0825</code>.</p>

Improper Initialization Affecting kernel-tools package, versions <0:4.18.0-348.20.1.el8_5

Threat Intelligence

Mature

12.09% (96^th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk ID SNYK-ROCKY8-KERNELTOOLS-3276892
published 3 Feb 2023
disclosed 10 Mar 2022

Report a new vulnerability Found a mistake?

Introduced: 10 Mar 2022

CVE-2022-0847 Open this link in a new tab CWE-665 Open this link in a new tab

How to fix?

Upgrade Rocky-Linux:8 kernel-tools to version 0:4.18.0-348.20.1.el8_5 or higher.
This issue was patched in RLSA-2022:0825.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.

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)

High
Availability (A)

High

Improper Initialization Affecting kernel-tools package, versions <0:4.18.0-348.20.1.el8_5

Severity

Based on Rocky Linux security rating