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Amazon Linux AMI: CVE-2019-9500: Security patch for kernel (ALAS-2019-1214)

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Amazon Linux AMI: CVE-2019-9500: Security patch for kernel (ALAS-2019-1214)

Severity
8
CVSS
(AV:A/AC:M/Au:N/C:C/I:C/A:C)
Published
05/14/2019
Created
06/04/2019
Added
05/31/2019
Modified
03/02/2020

Description

The Broadcom brcmfmac WiFi driver prior to commit 1b5e2423164b3670e8bc9174e4762d297990deff is vulnerable to a heap buffer overflow. If the Wake-up on Wireless LAN functionality is configured, a malicious event frame can be constructed to trigger an heap buffer overflow in the brcmf_wowl_nd_results function. This vulnerability can be exploited with compromised chipsets to compromise the host, or when used in combination with CVE-2019-9503, can be used remotely. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • amazon-linux-upgrade-kernel

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