RHSA-2019:2741 — Security Advisory

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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: Heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c (CVE-2019-3846)

• Kernel: KVM: nVMX: guest accesses L0 MSR causes potential DoS (CVE-2019-3887)

• kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results (CVE-2019-9500)

• kernel: Count overflow in FUSE request leading to use-after-free issues. (CVE-2019-11487)

• kernel: brcmfmac frame validation bypass (CVE-2019-9503)

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):

• BUG: scheduling while atomic in zswap (BZ#1726362)

• kernel-rt: update to the RHEL8.0.z batch#3 source tree (BZ#1734475)