Use After Free Affecting kernel-rt-debug-modules-extra package, versions <0:4.18.0-80.11.1.rt9.156.el8_0


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.04% (12th percentile)

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  • Snyk ID SNYK-CENTOS8-KERNELRTDEBUGMODULESEXTRA-1991195
  • published 26 Jul 2021
  • disclosed 4 Dec 2018

How to fix?

Upgrade Centos:8 kernel-rt-debug-modules-extra to version 0:4.18.0-80.11.1.rt9.156.el8_0 or higher.

NVD Description

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

In the Linux kernel through 4.19.6, a local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c.