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CentOS: CESA-2020-1234-01 Critical System Security Patch

red hat
Calendar Grey July 21, 2020
Dist Redhat Esm H88
Essential updates for kernel vulnerabilities and bugs in Red Hat Enterprise Linux 8.0 released to address significant risks.
An update for kernel is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

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.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: kernel: DAX hugepages not considered during mremap (CVE-2020-10757)
* kernel: Rogue cross-process SSBD shutdown. Linux scheduler logical bug allows an attacker to turn off the SSBD protection. (CVE-2020-10766)
* kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available. (CVE-2020-10767)
* kernel: Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command. (CVE-2020-10768)
* kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c (CVE-2020-12653)
* kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c (CVE-2020-12654)
* Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario (CVE-2020-12888)
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):
* [ESXi][RHEL8.1.0] scsi driver SG list incompatibility (vmw_pvscsi) (BZ#1839359)

Topics%20covered

Topics Covered

security advisory Red Hat kernel update bug fix important Denial of Service cross-process attack

References

https://access.redhat.com/security/cve/CVE-2020-10757 https://access.redhat.com/security/cve/CVE-2020-10766 https://access.redhat.com/security/cve/CVE-2020-10767 https://access.redhat.com/security/cve/CVE-2020-10768 https://access.redhat.com/security/cve/CVE-2020-12653 https://access.redhat.com/security/cve/CVE-2020-12654 https://access.redhat.com/security/cve/CVE-2020-12888 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS E4S (v. 8.0):
Source: kernel-4.18.0-80.27.1.el8_0.src.rpm
aarch64: bpftool-4.18.0-80.27.1.el8_0.aarch64.rpm bpftool-debuginfo-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-core-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-cross-headers-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-debug-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-debug-core-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-debug-debuginfo-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-debug-devel-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-debug-modules-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-debug-modules-extra-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-debuginfo-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-devel-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-headers-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-modules-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-modules-extra-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-tools-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-tools-debuginfo-4.18.0-80.27.1.el8_0.aarch64.rpm kernel-tools-libs-4.18.0-80.27.1.el8_0.aarch64.rpm perf-4.18.0-80.27.1.el8_0.aarch64.rpm perf-debuginfo-4.18.0-80.27.1.el8_0.aarch64.rpm python3-perf-4.18.0-80.27.1.el8_0.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:3041-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3041
Issue date: 2020-07-21

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.0Update Services for SAP Solutions.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat kernel update bug fix important Denial of Service cross-process attack

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS E4S (v. 8.0) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

1831868 - CVE-2020-12653 kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c

1832530 - CVE-2020-12654 kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c

1836244 - CVE-2020-12888 Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario

1842525 - CVE-2020-10757 kernel: kernel: DAX hugepages not considered during mremap

1845840 - CVE-2020-10766 kernel: Rogue cross-process SSBD shutdown. Linux scheduler logical bug allows an attacker to turn off the SSBD protection.

1845867 - CVE-2020-10767 kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available.

1845868 - CVE-2020-10768 kernel: Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command.

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