A kernel-rt security and bug fix update has been released for Red Hat Enterprise Linux 8

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Red Hat Security Advisory

Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2019:3309-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3309 Issue date: 2019-11-05
CVE Names: CVE-2018-16884 CVE-2018-19854 CVE-2018-19985 CVE-2018-20169 CVE-2019-3459 CVE-2019-3460 CVE-2019-3874 CVE-2019-3882 CVE-2019-3900 CVE-2019-5489 CVE-2019-7222 CVE-2019-9506 CVE-2019-10126 CVE-2019-10207 CVE-2019-10638 CVE-2019-11599 CVE-2019-11833 CVE-2019-11884 CVE-2019-13233 CVE-2019-14821 CVE-2019-15916 =====================================================================

1. Summary:

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Real Time (v. 8) - x86_64
Red Hat Enterprise Linux Real Time for NFV (v. 8) - x86_64

3. 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: nfs: use-after-free in svc_process_common() (CVE-2018-16884)
* Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)

* Kernel: page cache side channel attacks (CVE-2019-5489)

* hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)

* kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c (CVE-2019-10126)

* Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)
* kernel: Information Disclosure in crypto_report_one in
crypto/crypto_user.c (CVE-2018-19854)

* kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS (CVE-2018-20169)

* kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)

* kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)

* kernel: SCTP socket buffer memory leak leading to denial of service (CVE-2019-3874)

* kernel: denial of service vector through vfio DMA mappings (CVE-2019-3882)

* kernel: null-pointer dereference in hci_uart_set_flow_control (CVE-2019-10207)

* kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)

* kernel: fs/ext4/extents.c leads to information disclosure (CVE-2019-11833)

* kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command (CVE-2019-11884)

* kernel: use-after-free in arch/x86/lib/insn-eval.c (CVE-2019-13233)
* kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service (CVE-2019-15916)

* kernel: oob memory read in hso_probe in drivers/net/usb/hso.c (CVE-2018-19985)

* Kernel: KVM: leak of uninitialized stack contents to guest (CVE-2019-7222)

* Kernel: net: weak IP ID generation leads to remote device tracking (CVE-2019-10638)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes linked from the References section.
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/):

1656986 - CVE-2018-19854 kernel: Information Disclosure in crypto_report_one in crypto/crypto_user.c
1660375 - CVE-2018-16884 kernel: nfs: use-after-free in svc_process_common()1660385 - CVE-2018-20169 kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS
1663176 - CVE-2019-3459 kernel: Heap address information leak while using L2CAP_GET_CONF_OPT
1663179 - CVE-2019-3460 kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP
1664110 - CVE-2019-5489 Kernel: page cache side channel attacks 1666106 - CVE-2018-19985 kernel: oob memory read in hso_probe in drivers/net/usb/hso.c
1671930 - CVE-2019-7222 Kernel: KVM: leak of uninitialized stack contents to guest
1678887 - RT: update RT source tree to the RHEL-8.1 tree
1686373 - CVE-2019-3874 kernel: SCTP socket buffer memory leak leading to denial of service
1689426 - CVE-2019-3882 kernel: denial of service vector through vfio DMA mappings
1698757 - CVE-2019-3900 Kernel: vhost_net: infinite loop while receiving packets leads to DoS
1700666 - Make kernel-rt require rt-setup
1705937 - CVE-2019-11599 kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping
1709837 - CVE-2019-11884 kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command
1712072 - CVE-2019-11833 kernel: fs/ext4/extents.c leads to information disclosure
1716992 - CVE-2019-10126 kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c
1724657 - BUG: scheduling while atomic in zswap
1727756 - CVE-2019-13233 kernel: use-after-free in arch/x86/lib/insn-eval.c 1727857 - CVE-2019-9506 hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB)
1728765 - BUG: scheduling while atomic: rcuc/13/134/0x00000002 1729931 - CVE-2019-10638 Kernel: net: weak IP ID generation leads to remote device tracking
1733472 - BUG: scheduling while atomic: rcuc/1/24/0x00000002 1733874 - CVE-2019-10207 kernel: null-pointer dereference in hci_uart_set_flow_control
1743931 - BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
1745646 - [RT] sched/fair: Robustify CFS-bandwidth timer locking 1746708 - CVE-2019-14821 Kernel: KVM: OOB memory access via mmio ring buffer1750813 - CVE-2019-15916 kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service

6. Package List:

Red Hat Enterprise Linux Real Time for NFV (v. 8):

Source:
kernel-rt-4.18.0-147.rt24.93.el8.src.rpm

x86_64:
kernel-rt-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-core-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debug-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debug-core-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-147.rt24.93.el8.x86_64.rpm kernel-rt-debug-devel-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debug-kvm-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debug-kvm-debuginfo-4.18.0-147.rt24.93.el8.x86_64.rpm kernel-rt-debug-modules-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-147.rt24.93.el8.x86_64.rpm kernel-rt-debuginfo-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-147.rt24.93.el8.x86_64.rpm kernel-rt-devel-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-kvm-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-kvm-debuginfo-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-modules-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-modules-extra-4.18.0-147.rt24.93.el8.x86_64.rpm

Red Hat Enterprise Linux Real Time (v. 8):

Source:
kernel-rt-4.18.0-147.rt24.93.el8.src.rpm

x86_64:
kernel-rt-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-core-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debug-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debug-core-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-147.rt24.93.el8.x86_64.rpm kernel-rt-debug-devel-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debug-kvm-debuginfo-4.18.0-147.rt24.93.el8.x86_64.rpm kernel-rt-debug-modules-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-147.rt24.93.el8.x86_64.rpm kernel-rt-debuginfo-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-147.rt24.93.el8.x86_64.rpm kernel-rt-devel-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-kvm-debuginfo-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-modules-4.18.0-147.rt24.93.el8.x86_64.rpm
kernel-rt-modules-extra-4.18.0-147.rt24.93.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2018-16884
https://access.redhat.com/security/cve/CVE-2018-19854
https://access.redhat.com/security/cve/CVE-2018-19985
https://access.redhat.com/security/cve/CVE-2018-20169
https://access.redhat.com/security/cve/CVE-2019-3459
https://access.redhat.com/security/cve/CVE-2019-3460
https://access.redhat.com/security/cve/CVE-2019-3874
https://access.redhat.com/security/cve/CVE-2019-3882
https://access.redhat.com/security/cve/CVE-2019-3900
https://access.redhat.com/security/cve/CVE-2019-5489
https://access.redhat.com/security/cve/CVE-2019-7222
https://access.redhat.com/security/cve/CVE-2019-9506
https://access.redhat.com/security/cve/CVE-2019-10126
https://access.redhat.com/security/cve/CVE-2019-10207
https://access.redhat.com/security/cve/CVE-2019-10638
https://access.redhat.com/security/cve/CVE-2019-11599
https://access.redhat.com/security/cve/CVE-2019-11833
https://access.redhat.com/security/cve/CVE-2019-11884
https://access.redhat.com/security/cve/CVE-2019-13233
https://access.redhat.com/security/cve/CVE-2019-14821
https://access.redhat.com/security/cve/CVE-2019-15916
https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.1_release_notes/

8. Contact:

The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.