USN-6777-2: Linux kernel (Azure) vulnerabilities

Published May 20, 2024
·
Updated

Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-47233) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

Affected Software

1 affected component
Canonical Linux kernel (Azure)

Event History

May 12, 2025
Advisory Published
via Ubuntu·11:48 PM
Data Sourced
via Ubuntu·11:48 PM
DescriptionAffected Software

Frequently Asked Questions

1

What is the severity of USN-6777-2?

USN-6777-2 is considered to have a high severity due to the potential for denial of service from a use-after-free vulnerability.

2

How do I fix USN-6777-2?

To fix USN-6777-2, update your system to the specified remedial package version mentioned in the advisory.

3

What products are affected by USN-6777-2?

USN-6777-2 affects Ubuntu versions 14.04 and 16.04 that are using specific Linux kernel packages.

4

What type of vulnerability is USN-6777-2?

USN-6777-2 contains a use-after-free vulnerability caused by a race condition in the Broadcom FullMAC WLAN driver.

5

Can USN-6777-2 be exploited remotely?

No, USN-6777-2 can only be exploited by a physically proximate attacker.

Contact

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