RHSA-2019:2609: Important: kernel-rt security and bug fix update
First published: Tue Sep 03 2019(Updated: )
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.<br>Security Fix(es):<br><li> kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)</li> <li> kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results (CVE-2019-9500)</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.<br>Bug Fix(es):<br><li> BUG: scheduling while atomic in zswap (BZ#1737372)</li> <li> kernel-rt: update to the RHEL7.7.z batch#1 source tree (BZ#1740918)</li>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-debug | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-debug-debuginfo | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-debug-devel | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-debuginfo | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-devel | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-doc | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-trace | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-trace-debuginfo | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-trace-devel | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-debug-kvm | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-debug-kvm-debuginfo | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-kvm | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-kvm-debuginfo | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-trace-kvm | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
| redhat/kernel-rt-trace-kvm-debuginfo | <3.10.0-1062.1.1.rt56.1024.el7 | 3.10.0-1062.1.1.rt56.1024.el7 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1701224
- https://bugzilla.redhat.com/show_bug.cgi?id=1724389
- https://bugzilla.redhat.com/show_bug.cgi?id=1737372
- https://bugzilla.redhat.com/show_bug.cgi?id=1740918
- https://access.redhat.com/security/updates/classification/#important
- https://access.redhat.com/articles/4329821
- https://access.redhat.com/errata/RHSA-2019:2609 (Advisory)
Frequently Asked Questions
What is the severity of RHSA-2019:2609?
The severity of RHSA-2019:2609 is classified as moderate.
How do I fix RHSA-2019:2609?
To fix RHSA-2019:2609, upgrade the affected kernel-rt packages to version 3.10.0-1062.1.1.rt56.1024.el7.
Which vulnerabilities are addressed in RHSA-2019:2609?
RHSA-2019:2609 addresses the Spectre SWAPGS gadget vulnerability (CVE-2019-1125) and a heap buffer overflow in brcmfmac.
Which systems are affected by RHSA-2019:2609?
RHSA-2019:2609 affects systems running the kernel-rt packages on Red Hat Enterprise Linux 7.
Is RHSA-2019:2609 applicable to all kernel versions?
RHSA-2019:2609 specifically applies to the kernel-rt version 3.10.0-1062.1.1.rt56.1024.el7.
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