Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2019.4110
kernel-rt security and bug fix update
6 November 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kernel-rt
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 8
Red Hat Enterprise Linux WS/Desktop 8
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Increased Privileges -- Existing Account
Access Privileged Data -- Existing Account
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-15916 CVE-2019-14821 CVE-2019-13233
CVE-2019-11884 CVE-2019-11833 CVE-2019-11599
CVE-2019-10638 CVE-2019-10207 CVE-2019-10126
CVE-2019-9506 CVE-2019-7222 CVE-2019-5489
CVE-2019-3900 CVE-2019-3882 CVE-2019-3874
CVE-2019-3460 CVE-2019-3459 CVE-2018-20169
CVE-2018-19985 CVE-2018-19854 CVE-2018-16884
Reference: ASB-2019.0311
ASB-2019.0238
ESB-2019.4059
ESB-2019.3998
ESB-2019.3997
Original Bulletin:
https://access.redhat.com/errata/RHSA-2019:3309
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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 buffer
1750813 - 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 <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.
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