RHSA-2020:0328: Important: kernel-rt security and bug fix update
First published: Tue Feb 04 2020(Updated: )
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.<br>Security Fix(es):<br><li> kernel: heap overflow in mwifiex_update_vs_ie() function of Marvell WiFi driver (CVE-2019-14816)</li> <li> kernel: heap-based buffer overflow in mwifiex_process_country_ie() function in drivers/net/wireless/marvell/mwifiex/sta_ioctl.c (CVE-2019-14895)</li> <li> kernel: heap overflow in marvell/mwifiex/tdls.c (CVE-2019-14901)</li> <li> kernel: rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel lacks a certain upper-bound check, leading to a buffer overflow (CVE-2019-17666)</li> <li> kernel: heap overflow in mwifiex_set_uap_rates() function of Marvell Wifi Driver leading to DoS (CVE-2019-14814)</li> <li> kernel: heap-overflow in mwifiex_set_wmm_params() function of Marvell WiFi driver leading to DoS (CVE-2019-14815)</li> <li> kernel: incomplete fix for race condition between mmget_not_zero()/get_task_mm() and core dumping in CVE-2019-11599 (CVE-2019-14898)</li> <li> Kernel: KVM: export MSR_IA32_TSX_CTRL to guest - incomplete fix for TAA (CVE-2019-11135) (CVE-2019-19338)</li> 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.<br>Bug Fix(es):<br><li> kernel-rt: update RT source tree to the RHEL-8.1.z2 source tree (BZ#1780326)</li>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-core | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-debug | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-debug-core | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-debug-debuginfo | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-debug-devel | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-debug-kvm-debuginfo | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-debug-modules | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-debug-modules-extra | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-debuginfo | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-devel | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-kvm-debuginfo | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-modules | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-modules-extra | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-debug-kvm | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
| redhat/kernel-rt-kvm | <4.18.0-147.5.1.rt24.98.el8_1 | 4.18.0-147.5.1.rt24.98.el8_1 |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2020:0328?
The severity of RHSA-2020:0328 is categorized as critical due to a heap overflow vulnerability that could lead to arbitrary code execution.
How do I fix RHSA-2020:0328?
To fix RHSA-2020:0328, update the affected kernel-rt packages to version 4.18.0-147.5.1.rt24.98.el8_1.
What vulnerabilities are addressed in RHSA-2020:0328?
RHSA-2020:0328 addresses a heap overflow vulnerability in the mwifiex_update_vs_ie() function of the Marvell WiFi driver (CVE-2019-14816).
Which packages are affected by RHSA-2020:0328?
RHSA-2020:0328 affects various kernel-rt packages including kernel-rt, kernel-rt-core, and kernel-rt-debug across multiple architectures.
Is a reboot required after applying the fix for RHSA-2020:0328?
Yes, a reboot is required after applying the fix to ensure the new kernel is loaded and the vulnerability is mitigated.
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