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Red Hat 7 RHSA-2019-1973-01 Important: Kernel-Alt DoS Addressed

red hat
Calendar Grey July 30, 2019
Dist Redhat Esm H88
The latest kernel-alt release for Red Hat Enterprise Linux 7 targets significant security vulnerabilities and resolves various bugs, ensuring improved overall system performance.
An update for kernel-alt is now available for Red Hat Enterprise Linux 7

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-alt packages provide the Linux kernel version 4.x.
Security Fix(es):
* Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)
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):
* Pegas1.1 - 7.5-alt s390x kernel oops in update_cfs_rq_h_load (BZ#1557242)
* race of lockd/nfsd inetaddr notifiers with pointers change (BZ#1637541)
* lockd: possible double unregister of inetaddr notifiers (BZ#1637542)
* [Huawei AArch64 7.6 Bug] During the virtual machine migration process, NFS may trigger a system panic. (BZ#1671943)
* RHEL-Alt-7.6 - jit'd java code on power9 ppc64le experiences stack corruption (BZ#1707630)
Users of kernel-alt are advised to upgrade to these updated packages, which fix these bugs.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux security impact update advisory DoS fix kernel-alt software bug fix

References

https://access.redhat.com/security/cve/CVE-2019-3900 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):
Source: kernel-alt-4.14.0-115.10.1.el7a.src.rpm
aarch64: kernel-4.14.0-115.10.1.el7a.aarch64.rpm kernel-debug-4.14.0-115.10.1.el7a.aarch64.rpm kernel-debug-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm kernel-debug-devel-4.14.0-115.10.1.el7a.aarch64.rpm kernel-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm kernel-debuginfo-common-aarch64-4.14.0-115.10.1.el7a.aarch64.rpm kernel-devel-4.14.0-115.10.1.el7a.aarch64.rpm kernel-headers-4.14.0-115.10.1.el7a.aarch64.rpm kernel-tools-4.14.0-115.10.1.el7a.aarch64.rpm kernel-tools-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm kernel-tools-libs-4.14.0-115.10.1.el7a.aarch64.rpm perf-4.14.0-115.10.1.el7a.aarch64.rpm perf-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm python-perf-4.14.0-115.10.1.el7a.aarch64.rpm python-perf-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm
noarch: kernel-abi-whitelists-4.14.0-115.10.1.el7a.noarch.rpm kernel-doc-4.14.0-115.10.1.el7a.noarch.rpm
ppc64le: kernel-4.14.0-115.10.1.el7a.ppc64le.rpm kernel-bootwrapper-4.14.0-115.10.1.el7a.ppc64le.rpm kernel-debug-4.14.0-115.10.1.el7a.ppc64le.rpm kernel-debug-debuginfo-4.14.0-115.10.1.el7a.ppc64le.rpm kernel-debuginfo-4.14.0-115.10.1.el7a.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:1973-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:1973
Issue date: 2019-07-30

Topic

An update for kernel-alt is now available for Red Hat Enterprise Linux 7.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 Enterprise Linux security impact update advisory DoS fix kernel-alt software bug fix

Relevant Releases Architectures

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le

Bugs Fixed

1698757 - CVE-2019-3900 Kernel: vhost_net: infinite loop while receiving packets leads to DoS

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