A kernel-rt security and bug fix update has been released for Red Hat Enterprise Linux 7.
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Red Hat Security Advisory
Synopsis: Important: kernel-rt security and bug fix update
Advisory ID: RHSA-2020:0375-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0375
Issue date: 2020-02-04
CVE Names: CVE-2019-14816 CVE-2019-14895 CVE-2019-14898
CVE-2019-14901 CVE-2019-17133
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1. Summary:
An update for kernel-rt is now available for Red Hat Enterprise Linux 7.
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 Realtime (v. 7) - noarch, x86_64
Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, 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: heap overflow in mwifiex_update_vs_ie() function of Marvell WiFi
driver (CVE-2019-14816)
* kernel: heap-based buffer overflow in mwifiex_process_country_ie()
function in drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
(CVE-2019-14895)
* kernel: heap overflow in marvell/mwifiex/tdls.c (CVE-2019-14901)
* kernel: buffer overflow in cfg80211_mgd_wext_giwessid in
net/wireless/wext-sme.c (CVE-2019-17133)
* kernel: incomplete fix for race condition between
mmget_not_zero()/get_task_mm() and core dumping in CVE-2019-11599
(CVE-2019-14898)
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):
* patchset for x86/atomic: Fix smp_mb__{before,after}_atomic() [kernel-rt]
(BZ#1772522)
* kernel-rt: update to the RHEL7.7.z batch#4 source tree (BZ#1780322)
* kvm nx_huge_pages_recovery_ratio=0 is needed to meet KVM-RT low latency
requirement (BZ#1781157)
* kernel-rt: hard lockup panic in during execution of CFS bandwidth period
timer (BZ#1788057)
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/):
1744149 - CVE-2019-14816 kernel: heap overflow in mwifiex_update_vs_ie() function of Marvell WiFi driver
1771909 - CVE-2019-17133 kernel: buffer overflow in cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c
1773519 - CVE-2019-14901 kernel: heap overflow in marvell/mwifiex/tdls.c
1774671 - CVE-2019-14898 kernel: incomplete fix for race condition between mmget_not_zero()/get_task_mm() and core dumping in CVE-2019-11599
1774870 - CVE-2019-14895 kernel: heap-based buffer overflow in mwifiex_process_country_ie() function in drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
1781157 - kvm nx_huge_pages_recovery_ratio=0 is needed to meet KVM-RT low latency requirement [rhel-7.7.z]
6. Package List:
Red Hat Enterprise Linux for Real Time for NFV (v. 7):
Source:
kernel-rt-3.10.0-1062.12.1.rt56.1042.el7.src.rpm
noarch:
kernel-rt-doc-3.10.0-1062.12.1.rt56.1042.el7.noarch.rpm
x86_64:
kernel-rt-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-debug-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-debug-devel-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-debug-kvm-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-debug-kvm-debuginfo-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-debuginfo-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-devel-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-kvm-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-kvm-debuginfo-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-trace-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-trace-devel-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-trace-kvm-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-trace-kvm-debuginfo-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
Red Hat Enterprise Linux Realtime (v. 7):
Source:
kernel-rt-3.10.0-1062.12.1.rt56.1042.el7.src.rpm
noarch:
kernel-rt-doc-3.10.0-1062.12.1.rt56.1042.el7.noarch.rpm
x86_64:
kernel-rt-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-debug-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-debug-devel-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-debuginfo-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-devel-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-trace-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-1062.12.1.rt56.1042.el7.x86_64.rpm
kernel-rt-trace-devel-3.10.0-1062.12.1.rt56.1042.el7.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-2019-14816
https://access.redhat.com/security/cve/CVE-2019-14895
https://access.redhat.com/security/cve/CVE-2019-14898
https://access.redhat.com/security/cve/CVE-2019-14901
https://access.redhat.com/security/cve/CVE-2019-17133
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
