What is the severity of RHSA-2021:3439?

The severity of RHSA-2021:3439 is classified as moderate.

How do I fix RHSA-2021:3439?

To fix RHSA-2021:3439, update to kernel-rt package version 3.10.0-1160.42.2.rt56.1182.el7 or later.

What vulnerability does RHSA-2021:3439 address?

RHSA-2021:3439 addresses a use-after-free vulnerability in the route4_change() function in net/sched/cls_route.c.

Which systems are affected by RHSA-2021:3439?

RHSA-2021:3439 affects Red Hat kernel-rt packages, specifically version 3.10.0-1160.42.2.rt56.1182.el7 and earlier.

What products are recommended for RHSA-2021:3439 remediation?

The recommended product for remediation of RHSA-2021:3439 is the updated kernel-rt package version 3.10.0-1160.42.2.rt56.1182.el7.

Vulnerability/
RHSA-2021:3439

CWE

416

7/9/2021

RHSA-2021:3439: Moderate: kernel-rt security and bug fix update

First published: Tue Sep 07 2021(Updated: )

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.<br>Security Fix(es):<br><li> kernel: use-after-free in route4_change() in net/sched/cls_route.c (CVE-2021-3715)</li> For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.<br>Bug Fix(es):<br><li> kernel-rt: update to the latest RHEL7.9.z source tree (BZ#1995878)</li>

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Reference Links

Frequently Asked Questions

What is the severity of RHSA-2021:3439?
The severity of RHSA-2021:3439 is classified as moderate.
How do I fix RHSA-2021:3439?
To fix RHSA-2021:3439, update to kernel-rt package version 3.10.0-1160.42.2.rt56.1182.el7 or later.
What vulnerability does RHSA-2021:3439 address?
RHSA-2021:3439 addresses a use-after-free vulnerability in the route4_change() function in net/sched/cls_route.c.
Which systems are affected by RHSA-2021:3439?
RHSA-2021:3439 affects Red Hat kernel-rt packages, specifically version 3.10.0-1160.42.2.rt56.1182.el7 and earlier.
What products are recommended for RHSA-2021:3439 remediation?
The recommended product for remediation of RHSA-2021:3439 is the updated kernel-rt package version 3.10.0-1160.42.2.rt56.1182.el7.

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