- Issued:
- 2019-09-23
- Updated:
- 2019-09-23
RHSA-2019:2865 - Important: kpatch-patch security update
Synopsis
Important: kpatch-patch security update
Type/Severity
Security Advisory Important
Topic
An update for kpatch-patch is now available for RHEL-7.6.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
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.
Security Fix(es):
- 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)
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.
Solution
Before applying this update, make sure all previously released errata relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 7.6 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 7.6 | x86_64 |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 7.6 | ppc64le |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 7.6 | ppc64le |
| Red Hat Enterprise Linux Server - TUS | 7.6 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 7.6 | x86_64 |
Updated Packages
- kpatch-patch-3_10_0-957_35_1-debuginfo-1-1.el7.x86_64.rpm
- kpatch-patch-3_10_0-957_35_1-1-1.el7.src.rpm
- kpatch-patch-3_10_0-957_35_1-1-1.el7.ppc64le.rpm
- kpatch-patch-3_10_0-957_35_1-debuginfo-1-1.el7.ppc64le.rpm
- kpatch-patch-3_10_0-957_35_1-1-1.el7.x86_64.rpm
Fixes
CVEs
References
- https://access.redhat.com/security/updates/classification/#important
- This content is not included.This content is not included.https://access.redhat.com/security/vulnerabilities/kernel-vhost
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.