Double Free Affecting kernel-rt package, versions <0:5.14.0-70.50.2.rt21.122.el9_0


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELRT-5292246
  • published23 Mar 2023
  • disclosed20 Mar 2023

Introduced: 20 Mar 2023

CVE-2022-4744  (opens in a new tab)
CWE-415  (opens in a new tab)
CWE-824  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:9 kernel-rt to version 0:5.14.0-70.50.2.rt21.122.el9_0 or higher.
This issue was patched in RHSA-2023:1467.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.

CVSS Scores

version 3.1