Race Condition Affecting kernel-firmware package, versions <0:2.6.32-754.3.5.el6


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-RHEL6-KERNELFIRMWARE-1519682
  • published26 Jul 2021
  • disclosed14 Feb 2018

Introduced: 14 Feb 2018

CVE-2018-7566  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade RHEL:6 kernel-firmware to version 0:2.6.32-754.3.5.el6 or higher.
This issue was patched in RHSA-2018:2390.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-firmware package and not the kernel-firmware package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

The Linux kernel 4.15 has a Buffer Overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user.