Red Hat Security Advisory 2019-2945-01 - 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: 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 brcmf_wowl_nd_results() function. This vulnerability can be exploited by compromised chipsets to compromise the host, or when used in combination with another brcmfmac driver flaw, can be used remotely. This can result in a remote denial of service. Due to the nature of the flaw, a remote privilege escalation cannot be fully ruled out. Issues addressed include buffer overflow and denial of service vulnerabilities.
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