N/A - RHSA-2019:4168

Problem Description:

An update for kernel is now available for Red Hat Enterprise Linux 7.6 Extended Update Support.

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.6) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.6) - ppc64, ppc64le, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

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

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):

* [HPEMC 7.7 BUG] Protect against concurrent calls into UV BIOS (BZ#1720367)

* A cluster node has multiple hung "mv" processes that are accessing a gfs2 filesystem. (BZ#1721911)

* alua messages flooding serial console leading to cluster failover delays (BZ#1754849)

* kernel build: parallelize redhat/mod-sign.sh (BZ#1755329)

* kernel build: speed up module compression step (BZ#1755338)

* Nested VirtualBox VMs on Windows guest has the potential of impacting memory region allocated to other KVM guests (BZ#1755782)

* [Intel 7.8 Bug] [KVM][CLX] CPUID_7_0_EDX_ARCH_CAPABILITIES is not enabled in VM. (BZ#1757756)

* OS getting restarted because of driver issue with QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express HBA [1077:2532] (rev 02). (BZ#1759446)

* patchset for x86/atomic: Fix smp_mb__{before,after}_atomic() (BZ#1772810)

4. Solution:

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1701224 - CVE-2019-9500 kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results