USN-5219-1: Linux kernel vulnerability
It was discovered that the eBPF implementation in the Linux kernel did not properly validate the memory size of certain ring buffer operation arguments. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
Affected Software
Event History
Frequently Asked Questions
What is the severity of USN-5219-1?
The severity level of USN-5219-1 is considered high due to potential denial of service and arbitrary code execution risks.
How do I fix USN-5219-1?
To fix USN-5219-1, upgrade to the latest kernel version as specified in the advisory, which is 5.13.0-1008.8 or higher.
What are the potential impacts of USN-5219-1?
The impacts of USN-5219-1 include possible system crashes and exploitation that may lead to arbitrary code execution.
Who is affected by USN-5219-1?
Users of Ubuntu 21.10 with specific kernel packages such as linux-image-5.13.0-1008-kvm are affected by USN-5219-1.
What should I do if I'm using an affected version for USN-5219-1?
If using an affected version, you should immediately update your kernel to the fixed version provided in the USN-5219-1 notice.