RHSA-2019:2945: Important: kpatch-patch security update

Published Oct 1, 2019
·
Updated

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.Security fix(es): If the Wake-up on Wireless LAN functionality is configured in the brcmfmac driver, which only works with Broadcom FullMAC chipsets, a malicious event frame can be constructed to trigger a heap buffer overflow in the brcmfwowlndresults() function. This vulnerability can be exploited by compromised chipsets to compromise the host, or when used in combination with another brcmfmac driver flaw (CVE-2019-9503), can be used remotely. This can result in a remote denial of service (DoS). Due to the nature of the flaw, a remote privilege escalation cannot be fully ruled out. (CVE-2019-9500) For more details about the security issue(s), including the impact, a CVSS score, acknowledgements, and other related information, refer to the CVE page(s) listed in the References section.

Affected Software

5 affected componentsFixes available
redhat/kpatch-patch<3_10_0-1062-1-2.el7
3_10_0-1062-1-2.el7
redhat/kpatch-patch<3_10_0-1062-1-2.el7
3_10_0-1062-1-2.el7
redhat/kpatch-patch<3_10_0-1062-debuginfo-1-2.el7
3_10_0-1062-debuginfo-1-2.el7
redhat/kpatch-patch<3_10_0-1062-1-2.el7
3_10_0-1062-1-2.el7
redhat/kpatch-patch<3_10_0-1062-debuginfo-1-2.el7
3_10_0-1062-debuginfo-1-2.el7

Remediation

Event History

Jun 9, 2026
Advisory Published
via Red Hat·03:38 PM
Data Sourced
via Red Hat·03:38 PM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2019:2945?

The severity level of RHSA-2019:2945 is classified as important.

2

How do I fix RHSA-2019:2945?

To resolve RHSA-2019:2945, update the kpatch-patch package to version 3_10_0-1062-1-2.el7 or later.

3

Which systems are affected by RHSA-2019:2945?

RHSA-2019:2945 affects systems running the kpatch-patch package version 3_10_0-1062-1-2.el7.

4

What vulnerability does RHSA-2019:2945 address?

RHSA-2019:2945 addresses a vulnerability related to the Wake-up on Wireless LAN functionality in the brcmfmac driver.

5

Is there a workaround for RHSA-2019:2945?

There is no official workaround provided for RHSA-2019:2945, and the recommended action is to apply the security update.

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