Use After Free Affecting kernel-uek-tools package, versions <0:4.14.35-2047.505.4.el7uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.07% (34th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKTOOLS-2598790
  • published10 Apr 2022
  • disclosed14 May 2021

Introduced: 14 May 2021

CVE-2021-33034  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-tools to version 0:4.14.35-2047.505.4.el7uek or higher.
This issue was patched in ELSA-2021-9349.

NVD Description

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

In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.

CVSS Scores

version 3.1