- Issued:
- 2019-09-20
- Updated:
- 2019-09-20
RHSA-2019:2829 - Important: kernel security update
Synopsis
Important: kernel security update
Type/Severity
Security Advisory Important
Topic
An update for kernel is now available for Red Hat Enterprise Linux 7.
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
The kernel packages contain the Linux kernel, the core of any Linux operating system.
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)
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.
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Virtualization Host | 4 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 7.7 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 7.7 | x86_64 |
| Red Hat Enterprise Linux for Scientific Computing | 7 | x86_64 |
| Red Hat Enterprise Linux for Power, little endian | 7 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 7.7 | ppc64le |
| Red Hat Enterprise Linux for Power, big endian | 7 | ppc64 |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 7.7 | ppc64 |
| Red Hat Enterprise Linux for IBM z Systems | 7 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 7.7 | s390x |
| Red Hat Enterprise Linux Workstation | 7 | x86_64 |
| Red Hat Enterprise Linux Server | 7 | x86_64 |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 7.7 | ppc64le |
| Red Hat Enterprise Linux Server - TUS | 7.7 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 7 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian | 7 | ppc64le |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian | 7 | ppc64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) | 7 | s390x |
| Red Hat Enterprise Linux Server - AUS | 7.7 | x86_64 |
| Red Hat Enterprise Linux EUS Compute Node | 7.7 | x86_64 |
| Red Hat Enterprise Linux Desktop | 7 | x86_64 |
Updated Packages
- kernel-tools-debuginfo-3.10.0-1062.1.2.el7.x86_64.rpm
- kernel-debug-devel-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-tools-libs-devel-3.10.0-1062.1.2.el7.x86_64.rpm
- python-perf-3.10.0-1062.1.2.el7.s390x.rpm
- kernel-debug-debuginfo-3.10.0-1062.1.2.el7.ppc64.rpm
- kernel-bootwrapper-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-kdump-debuginfo-3.10.0-1062.1.2.el7.s390x.rpm
- kernel-3.10.0-1062.1.2.el7.ppc64.rpm
- kernel-3.10.0-1062.1.2.el7.x86_64.rpm
- python-perf-3.10.0-1062.1.2.el7.ppc64.rpm
- kernel-debug-debuginfo-3.10.0-1062.1.2.el7.x86_64.rpm
- kernel-debug-3.10.0-1062.1.2.el7.s390x.rpm
- python-perf-debuginfo-3.10.0-1062.1.2.el7.ppc64.rpm
- bpftool-debuginfo-3.10.0-1062.1.2.el7.ppc64.rpm
- kernel-debug-devel-3.10.0-1062.1.2.el7.x86_64.rpm
- kernel-debuginfo-3.10.0-1062.1.2.el7.x86_64.rpm
- perf-debuginfo-3.10.0-1062.1.2.el7.ppc64.rpm
- python-perf-3.10.0-1062.1.2.el7.x86_64.rpm
- kernel-headers-3.10.0-1062.1.2.el7.x86_64.rpm
- python-perf-debuginfo-3.10.0-1062.1.2.el7.x86_64.rpm
- kernel-headers-3.10.0-1062.1.2.el7.ppc64.rpm
- bpftool-3.10.0-1062.1.2.el7.ppc64.rpm
- bpftool-3.10.0-1062.1.2.el7.x86_64.rpm
- kernel-headers-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-3.10.0-1062.1.2.el7.s390x.rpm
- kernel-headers-3.10.0-1062.1.2.el7.s390x.rpm
- kernel-3.10.0-1062.1.2.el7.ppc64le.rpm
- bpftool-3.10.0-1062.1.2.el7.ppc64le.rpm
- bpftool-debuginfo-3.10.0-1062.1.2.el7.x86_64.rpm
- kernel-debuginfo-common-ppc64le-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-tools-libs-3.10.0-1062.1.2.el7.x86_64.rpm
- perf-3.10.0-1062.1.2.el7.ppc64.rpm
- kernel-debug-debuginfo-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-debug-devel-3.10.0-1062.1.2.el7.s390x.rpm
- perf-debuginfo-3.10.0-1062.1.2.el7.s390x.rpm
- bpftool-3.10.0-1062.1.2.el7.s390x.rpm
- kernel-devel-3.10.0-1062.1.2.el7.x86_64.rpm
- kernel-debug-debuginfo-3.10.0-1062.1.2.el7.s390x.rpm
- kernel-tools-libs-devel-3.10.0-1062.1.2.el7.ppc64.rpm
- kernel-debug-3.10.0-1062.1.2.el7.ppc64.rpm
- kernel-tools-3.10.0-1062.1.2.el7.ppc64.rpm
- bpftool-debuginfo-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-tools-debuginfo-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-debuginfo-common-s390x-3.10.0-1062.1.2.el7.s390x.rpm
- perf-debuginfo-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-kdump-3.10.0-1062.1.2.el7.s390x.rpm
- kernel-tools-libs-devel-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-kdump-devel-3.10.0-1062.1.2.el7.s390x.rpm
- kernel-tools-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-debuginfo-3.10.0-1062.1.2.el7.ppc64.rpm
- perf-3.10.0-1062.1.2.el7.x86_64.rpm
- python-perf-debuginfo-3.10.0-1062.1.2.el7.s390x.rpm
- perf-debuginfo-3.10.0-1062.1.2.el7.x86_64.rpm
- kernel-bootwrapper-3.10.0-1062.1.2.el7.ppc64.rpm
- kernel-debuginfo-common-ppc64-3.10.0-1062.1.2.el7.ppc64.rpm
- kernel-debuginfo-common-x86_64-3.10.0-1062.1.2.el7.x86_64.rpm
- kernel-devel-3.10.0-1062.1.2.el7.ppc64.rpm
- kernel-tools-3.10.0-1062.1.2.el7.x86_64.rpm
- kernel-debug-3.10.0-1062.1.2.el7.x86_64.rpm
- kernel-debuginfo-3.10.0-1062.1.2.el7.ppc64le.rpm
- bpftool-debuginfo-3.10.0-1062.1.2.el7.s390x.rpm
- kernel-tools-libs-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-3.10.0-1062.1.2.el7.src.rpm
- kernel-devel-3.10.0-1062.1.2.el7.s390x.rpm
- kernel-doc-3.10.0-1062.1.2.el7.noarch.rpm
- kernel-tools-debuginfo-3.10.0-1062.1.2.el7.ppc64.rpm
- kernel-devel-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-abi-whitelists-3.10.0-1062.1.2.el7.noarch.rpm
- python-perf-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-debug-devel-3.10.0-1062.1.2.el7.ppc64.rpm
- kernel-debuginfo-3.10.0-1062.1.2.el7.s390x.rpm
- perf-3.10.0-1062.1.2.el7.s390x.rpm
- kernel-tools-libs-3.10.0-1062.1.2.el7.ppc64.rpm
- perf-3.10.0-1062.1.2.el7.ppc64le.rpm
- python-perf-debuginfo-3.10.0-1062.1.2.el7.ppc64le.rpm
- kernel-debug-3.10.0-1062.1.2.el7.ppc64le.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.