Double Free Affecting kernel-uek package, versions <0:4.14.35-2047.508.3.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEK-2599777
  • published10 Apr 2022
  • disclosed8 Jun 2021

Introduced: 8 Jun 2021

CVE-2021-3564  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek to version 0:4.14.35-2047.508.3.el7uek or higher.
This issue was patched in ELSA-2021-9485.

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:7 relevant fixed versions and status.

A flaw double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in the way user attach malicious HCI TTY Bluetooth device. A local user could use this flaw to crash the system. This flaw affects all the Linux kernel versions starting from 3.13.

CVSS Scores

version 3.1