Improper Initialization Affecting kernel-uek package, versions <0:5.4.17-2136.305.5.3.el8uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
12.09% (96th percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELUEK-2605470
  • published10 Apr 2022
  • disclosed10 Mar 2022

Introduced: 10 Mar 2022

CVE-2022-0847  (opens in a new tab)
CWE-665  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-uek to version 0:5.4.17-2136.305.5.3.el8uek or higher.
This issue was patched in ELSA-2022-9244.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek package and not the kernel-uek package as distributed by Oracle. See How to fix? for Oracle: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.

CVSS Scores

version 3.1