RHSA-2019:2862: Important: kernel-alt security update
First published: Mon Sep 23 2019(Updated: )
The kernel-alt packages provide the Linux kernel version 4.x.<br>Security Fix(es):<br><li> A buffer overflow flaw was found in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host. (CVE-2019-14835)</li>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-alt | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/kernel-abi-whitelists | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-debug | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/kernel-debug-debuginfo | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/kernel-debug-devel | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/kernel-debuginfo | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/kernel-debuginfo-common-aarch64 | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/kernel-devel | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/kernel-doc | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-headers | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/kernel-tools | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/kernel-tools-debuginfo | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/kernel-tools-libs | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/kernel-tools-libs-devel | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/perf | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/perf-debuginfo | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/python-perf | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/python-perf-debuginfo | <4.14.0-115.13.1.el7a.aa | 4.14.0-115.13.1.el7a.aa |
| redhat/kernel | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-bootwrapper | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-debug | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-debug-debuginfo | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-debug-devel | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-debuginfo | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-debuginfo-common-ppc64le | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-devel | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-headers | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-tools | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-tools-debuginfo | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-tools-libs | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-tools-libs-devel | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/perf | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/perf-debuginfo | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/python-perf | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/python-perf-debuginfo | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-debug | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-debug-debuginfo | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-debug-devel | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-debuginfo | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-debuginfo-common-s390x | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-devel | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-headers | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-kdump | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-kdump-debuginfo | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/kernel-kdump-devel | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/perf | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/perf-debuginfo | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/python-perf | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
| redhat/python-perf-debuginfo | <4.14.0-115.13.1.el7a | 4.14.0-115.13.1.el7a |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2019:2862?
The severity of RHSA-2019:2862 is classified as important.
How do I fix RHSA-2019:2862?
To fix RHSA-2019:2862, update the affected kernel-alt and kernel packages to version 4.14.0-115.13.1.el7a.
What vulnerability does RHSA-2019:2862 address?
RHSA-2019:2862 addresses a buffer overflow vulnerability in the Linux kernel's vhost functionality.
What systems are affected by RHSA-2019:2862?
RHSA-2019:2862 affects systems running specific versions of the RHEL kernel-alt and related kernel packages.
Is there a workaround for RHSA-2019:2862?
There is no official workaround for RHSA-2019:2862; applying the recommended updates is the only solution.
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