RHSA-2019:2854: Important: kpatch-patch security update
First published: Sat Sep 21 2019(Updated: )
This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel.<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> 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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kpatch-patch | <3_10_0-1062-1-1.el7 | 3_10_0-1062-1-1.el7 |
| redhat/kpatch-patch | <3_10_0-1062_1_1-1-1.el7 | 3_10_0-1062_1_1-1-1.el7 |
| redhat/kpatch-patch | <3_10_0-1062-1-1.el7 | 3_10_0-1062-1-1.el7 |
| redhat/kpatch-patch | <3_10_0-1062-debuginfo-1-1.el7 | 3_10_0-1062-debuginfo-1-1.el7 |
| redhat/kpatch-patch | <3_10_0-1062_1_1-1-1.el7 | 3_10_0-1062_1_1-1-1.el7 |
| redhat/kpatch-patch | <3_10_0-1062_1_1-debuginfo-1-1.el7 | 3_10_0-1062_1_1-debuginfo-1-1.el7 |
| redhat/kpatch-patch | <3_10_0-1062-1-1.el7 | 3_10_0-1062-1-1.el7 |
| redhat/kpatch-patch | <3_10_0-1062-debuginfo-1-1.el7 | 3_10_0-1062-debuginfo-1-1.el7 |
| redhat/kpatch-patch | <3_10_0-1062_1_1-1-1.el7 | 3_10_0-1062_1_1-1-1.el7 |
| redhat/kpatch-patch | <3_10_0-1062_1_1-debuginfo-1-1.el7 | 3_10_0-1062_1_1-debuginfo-1-1.el7 |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2019:2854?
The severity of RHSA-2019:2854 is classified as important.
How do I fix RHSA-2019:2854?
To fix RHSA-2019:2854, you need to update the kpatch-patch package to a version that addresses the vulnerability.
What systems are affected by RHSA-2019:2854?
The systems affected by RHSA-2019:2854 are those running the specified versions of the kpatch-patch package.
What type of vulnerability is associated with RHSA-2019:2854?
RHSA-2019:2854 is associated with a buffer overflow flaw in the Linux kernel's vhost functionality.
Is there a specific version of kpatch-patch required to resolve RHSA-2019:2854?
Yes, the remedial versions of kpatch-patch specified in the advisory must be installed to resolve RHSA-2019:2854.
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