RHSA-2019:2827: Important: kernel security update
First published: Fri Sep 20 2019(Updated: )
The kernel packages contain the Linux kernel, the core of any Linux operating system.<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 | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/bpftool | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/bpftool-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-abi-whitelists | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-core | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-cross-headers | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-core | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-devel | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-modules | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-modules-extra | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-devel | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-doc | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-headers | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-modules | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-modules-extra | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-tools | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-tools-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-tools-libs | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/perf | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/perf-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/python3-perf | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/python3-perf-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/bpftool | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/bpftool-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-core | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-cross-headers | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-core | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-devel | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-modules | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-modules-extra | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debuginfo-common-s390x | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-devel | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-headers | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-modules | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-modules-extra | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-tools | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-tools-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-zfcpdump | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-zfcpdump-core | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-zfcpdump-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-zfcpdump-devel | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-zfcpdump-modules | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-zfcpdump-modules-extra | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/perf | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/perf-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/python3-perf | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/python3-perf-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/bpftool | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/bpftool-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-core | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-cross-headers | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-core | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-devel | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-modules | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debug-modules-extra | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-debuginfo-common-ppc64le | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-devel | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-headers | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-modules | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-modules-extra | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-tools | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-tools-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-tools-libs | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/perf | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/perf-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/python3-perf | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/python3-perf-debuginfo | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/bpftool | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/bpftool-debuginfo | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-core | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-cross-headers | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-debug | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-debug-core | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-debug-debuginfo | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-debug-devel | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-debug-modules | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-debug-modules-extra | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-debuginfo | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-debuginfo-common-aarch64 | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-devel | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-headers | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-modules | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-modules-extra | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-tools | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-tools-debuginfo | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-tools-libs | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/perf | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/perf-debuginfo | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/python3-perf | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/python3-perf-debuginfo | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
| redhat/kernel-tools-libs-devel | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-tools-libs-devel | <4.18.0-80.11.2.el8_0 | 4.18.0-80.11.2.el8_0 |
| redhat/kernel-tools-libs-devel | <4.18.0-80.11.2.el8_0.aa | 4.18.0-80.11.2.el8_0.aa |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2019:2827?
The severity of RHSA-2019:2827 is classified as important due to the buffer overflow vulnerability.
How do I fix RHSA-2019:2827?
To fix RHSA-2019:2827, you need to update the kernel packages to version 4.18.0-80.11.2.el8_0 or higher.
Which Linux kernel packages are affected by RHSA-2019:2827?
RHSA-2019:2827 affects various kernel packages including kernel, kernel-core, kernel-debug, and bpftool among others.
Is there a workaround for RHSA-2019:2827 before applying the fix?
There are no known workarounds for RHSA-2019:2827 other than applying the provided updates.
What type of vulnerability does RHSA-2019:2827 address?
RHSA-2019:2827 addresses a buffer overflow vulnerability in the Linux kernel's vhost functionality.
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