Security Vulnerabilities fixed in kernel RHSA-2019:1971

Description

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: insufficient input validation in kernel mode driver in Intel i915 graphics leads to privilege escalation (CVE-2019-11085) * kernel: DMA attack using peripheral devices (Thunderclap) (BZ#1690716) * kernel: infinite loop in update_blocked_averages() in kernel/sched/fair.c leading to denial of service (CVE-2018-20784) * kernel: a NULL pointer dereference in drivers/scsi/megaraid/megaraid_sas_base.c leading to DoS (CVE-2019-11810) * kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.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 RHEL8.0.z batch#2 source tree (BZ#1717516)

Affected Applications

kernel

CVE References

CVE-2018-20784 CVE-2019-11085 CVE-2019-11810 CVE-2019-11811

Other References

https://access.redhat.com/errata/RHSA-2019:1971