8.3 - RHSA-2019:2703

Problem Description:

An update for kernel 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.

2. Relevant releases/architectures:

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, x86_64 Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

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

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: ppc: unrelated processes being able to read/write to each other's virtual memory (CVE-2019-12817)

* kernel: Use-after-free in sound/usb/card.c:usb_audio_probe() (CVE-2018-19824)

* 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):

* [DELL EMC 8.0 BUG]: pciehp deadlock resulting in NVMe device not being recognized when hot plugged (BZ#1712261)

* Host crashed while try to boot a compatible guest attached huge page by"-object memory-backend-file *"[1G-P9] (BZ#1714758)

* Setting malformed authenc key will crash the system (BZ#1715335)

* BUG: memory allocation failure in inode_doinit_with_dentry()/context_to_sid() (BZ#1717780)

* [HPEMC 8.1 BUG] Protect against concurrent calls into UV BIOS (BZ#1724534)

* PHC jumping on I350 (igb) (BZ#1726352)

* aarch64 kernel missing vulnerabilities status files (BZ#1726353)

* BUG: KASAN: use-after-free in skb_release_data() (BZ#1726354)

* [RHEL8][PANIC][aarch64] kernel panic when loading the dme1737 module (BZ#1726355)

* [RHEL8] [aarch64] Changes for BZ1672997 break kaslr (BZ#1726357)

* Network fails to come up when booting with kernel 3.10.0-862.el7.x86_64, several hung tasks can be seen in logs. (BZ#1726358)

* [Intel] 'cpupower frequency-set' produces unexpected results for some processors (BZ#1726360)

* HDMI/DP audio: ELD not updated on hotplug event (BZ#1726361)

* [mlx5_core] CX5 Adapter works not as expected when MTU is 9000, Unable to handle kernel paging request at virtual address 3ae0aafeff4b6b5a (BZ#1726372)

* [DELL 8.0 Bug] - hid-multitouch 0018:1FD2:8008.0001 ,lost function from S3 resume (BZ#1727098)

* [RHEL8.1 Pre Beta] [Power8] data corruption while returning from watchpoint exception handler (BZ#1733281)

* RHEL8.1 pre-Beta - cacheinfo code unsafe vs LPM (BZ#1733282)

* RHEL8.1 pre-Beta - [ZZ/Zeppelin] [kernel-4.18.0-100.el8.ppc64le] Hash MMU allows child to write parents process address space (BZ#1734689)

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/):

1655816 - CVE-2018-19824 kernel: Use-after-free in sound/usb/card.c:usb_audio_probe() 1695044 - CVE-2019-3887 Kernel: KVM: nVMX: guest accesses L0 MSR causes potential DoS 1701224 - CVE-2019-9500 kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results 1701842 - CVE-2019-9503 kernel: brcmfmac frame validation bypass 1703063 - CVE-2019-11487 kernel: Count overflow in FUSE request leading to use-after-free issues. 1713059 - CVE-2019-3846 kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c 1720616 - CVE-2019-12817 kernel: ppc: unrelated processes being able to read/write to each other's virtual memory