RHSA-2021:3439: Moderate: kernel-rt security and bug fix update
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.Security Fix(es): kernel: use-after-free in route4change() in net/sched/clsroute.c (CVE-2021-3715) 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.Bug Fix(es): kernel-rt: update to the latest RHEL7.9.z source tree (BZ#1995878)
Affected Software
Remediation
Event History
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.