USN-7455-2: Linux kernel (FIPS) vulnerabilities
Jann Horn discovered that the watchqueue event notification subsystem in the Linux kernel contained an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or escalate their privileges. (CVE-2022-0995) 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
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
What is the severity of USN-7455-2?
The severity of USN-7455-2 is classified as significant due to the potential for denial of service and privilege escalation.
How do I fix USN-7455-2?
To fix USN-7455-2, upgrade to the recommended Linux kernel versions specified in the advisory.
What systems are affected by USN-7455-2?
USN-7455-2 affects specific Ubuntu 22.04 systems running vulnerable Linux kernel versions.
Can USN-7455-2 lead to remote exploitation?
No, USN-7455-2 requires local access to exploit the vulnerability.
What is the nature of the vulnerability in USN-7455-2?
The vulnerability in USN-7455-2 is an out-of-bounds write in the Linux kernel's watch_queue event notification subsystem.