USN-6680-2: Linux kernel vulnerabilities

Published Mar 8, 2024
·
Updated

黄思聪 discovered that the NFC Controller Interface (NCI) implementation in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-46343) It was discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-51779) It was discovered that a race condition existed in the Rose X.25 protocol implementation in the Linux kernel, leading to a use-after- free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-51782) Alon Zahavi discovered that the NVMe-oF/TCP subsystem of the Linux kernel did not properly handle connect command payloads in certain situations, leading to an out-of-bounds read vulnerability. A remote attacker could use this to expose sensitive information (kernel memory). (CVE-2023-6121) Jann Horn discovered that the iouring subsystem in the Linux kernel contained an out-of-bounds access vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-6560) Dan Carpenter discovered that the netfilter subsystem in the Linux kernel did not store data in properly sized memory locations. A local user could use this to cause a denial of service (system crash). (CVE-2024-0607) Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and Shweta Shinde discovered that the Confidential Computing framework in the Linux kernel for x86 platforms did not properly handle 32-bit emulation on TDX and SEV. An attacker with access to the VMM could use this to cause a denial of service (guest crash) or possibly execute arbitrary code. (CVE-2024-25744)

Affected Software

1 affected component
Canonical Linux kernel

Event History

May 10, 2025
Advisory Published
via Ubuntu·04:08 AM
Data Sourced
via Ubuntu·04:08 AM
DescriptionAffected Software

Frequently Asked Questions

1

What is the severity of USN-6680-2?

The USN-6680-2 vulnerability has a high severity rating due to its potential for causing a denial of service.

2

How do I fix USN-6680-2?

To fix USN-6680-2, upgrade to the appropriate versions listed in the Ubuntu security advisory.

3

What systems are affected by USN-6680-2?

USN-6680-2 affects specific versions of the Linux kernel used in Ubuntu 22.04 and 23.10.

4

Can USN-6680-2 be exploited remotely?

No, USN-6680-2 requires local access, meaning an attacker must have local user privileges to exploit it.

5

What type of vulnerability is USN-6680-2?

USN-6680-2 is a null pointer dereference vulnerability related to the NFC Controller Interface implementation in the Linux kernel.

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