Use After Free Affecting kernel-debug-core package, versions <0:4.18.0-240.15.1.el8_3


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELDEBUGCORE-2578948
  • published10 Apr 2022
  • disclosed9 Dec 2020

Introduced: 9 Dec 2020

CVE-2020-29661  (opens in a new tab)
CWE-416  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-debug-core to version 0:4.18.0-240.15.1.el8_3 or higher.
This issue was patched in ELSA-2021-0558.

NVD Description

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

A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b.

CVSS Scores

version 3.1