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Red Hat Enterprise Linux 7.5: RHSA-2019-2975 Important Kernel Security Fix

red hat
Calendar Grey October 8, 2019
Dist Redhat Esm H88
Discover the critical kernel security and bug fix update for Red Hat Enterprise Linux 7.5 Extended Update Support, addressing various vulnerabilities impacting system integrity and stability
An update for kernel is now available for Red Hat Enterprise Linux 7.5 Extended Update Support

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):
* hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)
* kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)
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):
* TCP packets are segmented when sent to the VLAN device when coming from VXLAN dev. (BZ#1732810)
* skb head copy occurs when sending traffic over OVS managed VXLAN tunnel (BZ#1733896)
* [mlx4] VXLAN over VLAN TCP segmentation (BZ#1734306)
* use "make -jN" for modules_install (BZ#1735082)
* Backport TCP follow-up for small buffers (BZ#1739128)
* [FJ7.6 Bug]: [REG] kernel: ipc: ipc_free should use kvfree (BZ#1740176)
* RHEL7.6 - powerpc/pseries: Disable CPU hotplug across migrations / powerpc/rtas: Fix a potential race between CPU-Offline & Migration (LPM) (BZ#1745437)
* RHEL7.6 - powerpc/pseries: Fix unitialized timer reset on migration / powerpc/pseries/mobility: Extend start/stop topology update scope (LPM) (BZ#1745439)
* RHEL7.5 - ISST-LTE:PVM:Zeppelin :LPM: Failure logs and stack trace seen during LPM (POWER9/P9) (BZ#1745447)

Topics%20covered

Topics Covered

security advisory Red Hat bug fix important kernel security impact Denial of Service

References

https://access.redhat.com/security/cve/CVE-2019-1125 https://access.redhat.com/security/cve/CVE-2019-9506 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/articles/4329821

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.5):
Source: kernel-3.10.0-862.43.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-862.43.1.el7.noarch.rpm kernel-doc-3.10.0-862.43.1.el7.noarch.rpm
x86_64: kernel-3.10.0-862.43.1.el7.x86_64.rpm kernel-debug-3.10.0-862.43.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-862.43.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-862.43.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.43.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.43.1.el7.x86_64.rpm kernel-devel-3.10.0-862.43.1.el7.x86_64.rpm kernel-headers-3.10.0-862.43.1.el7.x86_64.rpm kernel-tools-3.10.0-862.43.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.43.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-862.43.1.el7.x86_64.rpm perf-3.10.0-862.43.1.el7.x86_64.rpm perf-debuginfo-3.10.0-862.43.1.el7.x86_64.rpm python-perf-3.10.0-862.43.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.43.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5):
x86_64: kernel-debug-debuginfo-3.10.0-862.43.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.43.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.43.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.43.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-862.43.1.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:2975-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2975
Issue date: 2019-10-08

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.5Extended Update Support.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 bug fix important kernel security impact Denial of Service

Relevant Releases Architectures

Red Hat Enterprise Linux ComputeNode EUS (v. 7.5) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) - x86_64

Red Hat Enterprise Linux Server EUS (v. 7.5) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.5) - ppc64, ppc64le, x86_64

Bugs Fixed

1724389 - CVE-2019-1125 kernel: hw: Spectre SWAPGS gadget vulnerability

1727857 - CVE-2019-9506 hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB)

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