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Off-by-one Error Affecting kernel-uek-devel package, versions <0:4.1.12-103.9.4.el7uek

Severity

 Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-2522567
  • published10 Apr 2022
  • disclosed27 Jul 2018
Report a new vulnerability Found a mistake?

Introduced: 27 Jul 2018

CVE-2017-2618  (opens in a new tab)
CWE-193  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:4.1.12-103.9.4.el7uek or higher.
This issue was patched in ELSA-2017-3640.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-devel package and not the kernel-uek-devel package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files before 4.9.10. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory.