RHSA-2019:1891: 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.Security Fix(es): kernel: nfs: use-after-free in svcprocesscommon() (CVE-2018-16884) kernel: insufficient input validation in kernel mode driver in Intel i915 graphics leads to privilege escalation (CVE-2019-11085) kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871) kernel: use-after-free in drivers/char/ipmi/ipmisiintf.c, ipmisimemio.c, ipmisiportio.c (CVE-2019-11811) 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 RHEL7.6.z batch#6 source tree (BZ#1718400)
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2019:1891?
The severity of RHSA-2019:1891 is classified as critical due to vulnerabilities that can lead to privilege escalation and denial of service.
How do I fix RHSA-2019:1891?
To fix RHSA-2019:1891, update the kernel-rt package to version 3.10.0-957.27.2.rt56.940.el7.
What vulnerabilities are addressed in RHSA-2019:1891?
RHSA-2019:1891 addresses a use-after-free vulnerability in nfs and insufficient input validation issues.
Who is affected by RHSA-2019:1891?
Systems running specific versions of the kernel-rt package on Red Hat Enterprise Linux 7 are affected by RHSA-2019:1891.
Is RHSA-2019:1891 related to any specific packages?
Yes, RHSA-2019:1891 specifically affects several kernel-rt packages including kernel-rt-debug and kernel-rt-devel.