USN-6818-2: Linux kernel (ARM laptop) vulnerabilities
Alon Zahavi discovered that the NVMe-oF/TCP subsystem in the Linux kernel did not properly validate H2C PDU data, leading to a null pointer dereference vulnerability. A remote attacker could use this to cause a denial of service (system crash). (CVE-2023-6356, CVE-2023-6535, CVE-2023-6536) It was discovered that the Intel Data Streaming and Intel Analytics Accelerator drivers in the Linux kernel allowed direct access to the devices for unprivileged users and virtual machines. A local attacker could use this to cause a denial of service. (CVE-2024-21823) Chenyuan Yang discovered that the RDS Protocol implementation in the Linux kernel contained an out-of-bounds read vulnerability. An attacker could use this to possibly cause a denial of service (system crash). (CVE-2024-23849) It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to a null pointer dereference vulnerability. A privileged local attacker could use this to possibly cause a denial of service (system crash). (CVE-2024-24860) 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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ubuntu/linux-image-6.5.0-1017-laptopto a version that resolves this vulnerability.Fixed in 6.5.0-1017.20 - Upgrade
Upgrade
ubuntu/linux-image-laptop-23.10to a version that resolves this vulnerability.Fixed in 6.5.0.1017.20 - Upgrade
Upgrade
Linux kernel (ARM laptop)to a version that resolves this vulnerability.Patch USN-6818-2
Event History
Frequently Asked Questions
What is the severity of USN-6818-2?
The vulnerability USN-6818-2 is considered to have a high severity, as it can lead to a denial of service through a system crash.
How do I fix USN-6818-2?
To fix USN-6818-2, update the Linux kernel to version 6.5.0-1017.20 or higher.
What systems are affected by USN-6818-2?
USN-6818-2 primarily affects Ubuntu systems running versions of the Linux kernel prior to 6.5.0-1017.20.
What does the USN-6818-2 vulnerability affect?
USN-6818-2 affects the NVMe-oF/TCP subsystem in the Linux kernel due to improper validation of H2C PDU data.
Can USN-6818-2 be exploited remotely?
Yes, a remote attacker can exploit USN-6818-2 to trigger a null pointer dereference, causing a denial of service.