USN-6653-2: Linux kernel (AWS) vulnerabilities
It was discovered that a race condition existed in the ATM (Asynchronous Transfer Mode) 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-2023-51780) It was discovered that a race condition existed in the AppleTalk networking 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-2023-51781) Zhenghan Wang discovered that the generic ID allocator implementation in the Linux kernel did not properly check for null bitmap when releasing IDs. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-6915) Robert Morris discovered that the CIFS network file system implementation in the Linux kernel did not properly validate certain server commands fields, leading to an out-of-bounds read vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2024-0565) Jann Horn discovered that the TLS subsystem in the Linux kernel did not properly handle spliced messages, leading to an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2024-0646)
Affected Software
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
What is the severity of USN-6653-2?
The severity of USN-6653-2 is high due to its potential to cause a system crash or arbitrary code execution.
How do I fix USN-6653-2?
To fix USN-6653-2, upgrade to the patched versions of the affected Linux kernel packages as specified in the advisory.
What is the cause of the vulnerability in USN-6653-2?
The vulnerability in USN-6653-2 is caused by a race condition in the ATM subsystem of the Linux kernel, leading to a use-after-free condition.
Who can exploit the vulnerability in USN-6653-2?
A local attacker with access to the system can exploit the vulnerability in USN-6653-2.
What are the affected versions in USN-6653-2?
Affected versions in USN-6653-2 include specific kernel versions of Ubuntu 22.04 and 20.04 as detailed in the advisory.