RHSA-2020:0100: Important: 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.<br>Security Fix(es):<br><li> kernel: Use-after-free in blkdrainqueue() function in block/blk-core.c (CVE-2018-20856)</li> <li> kernel: TLB flush happens too late on mremap (CVE-2018-18281)</li> <li> kernel: fix race condition between mmgetnotzero()/gettaskmm() and core dumping (CVE-2019-11599)</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> update the MRG 2.5.z 3.10 realtime-kernel sources (BZ#1779367)</li>
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2020:0100?
The severity of RHSA-2020:0100 is classified as important due to the potential for a use-after-free vulnerability in the Linux kernel.
How do I fix RHSA-2020:0100?
To fix RHSA-2020:0100, update the kernel-rt packages to version 3.10.0-693.62.1.rt56.659.el6 or later.
What vulnerability does RHSA-2020:0100 address?
RHSA-2020:0100 addresses a use-after-free vulnerability in the __blk_drain_queue() function of the Linux kernel.
Are there specific packages affected by RHSA-2020:0100?
Yes, RHSA-2020:0100 affects several kernel-rt packages, including kernel-rt, kernel-rt-debug, and kernel-rt-devel.
What is the advisory for RHSA-2020:0100?
The advisory for RHSA-2020:0100 provides details on the vulnerability, its impact, and available fixes for affected systems.