USN-6606-1: Linux kernel (OEM) vulnerabilities

Published Jan 25, 2024
·
Updated

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 the CIFS network file system implementation in the Linux kernel did not properly validate the server frame size in certain situation, leading to an out-of-bounds read vulnerability. An attacker could use this to construct a malicious CIFS image that, when operated on, could cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-6606) Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle inactive elements in its PIPAPO data structure, 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-2023-6817) Budimir Markovic, Lucas De Marchi, and Pengfei Xu discovered that the perf subsystem in the Linux kernel did not properly validate all event sizes when attaching new events, 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-2023-6931) Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly check deactivated elements in certain situations, 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-2024-0193)

Affected Software

9 affected componentsFixes available
Linux Kernel
All of the following
ubuntu/linux-image-6.1.0-1029-oem<6.1.0-1029.29
6.1.0-1029.29
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-oem-22.04<6.1.0.1029.30
6.1.0.1029.30
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-oem-22.04a<6.1.0.1029.30
6.1.0.1029.30
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-oem-22.04c<6.1.0.1029.30
6.1.0.1029.30
Ubuntu Ubuntu=22.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-6.1.0-1029-oem to a version that resolves this vulnerability.

    Fixed in 6.1.0-1029.29
  2. Upgrade

    Upgrade ubuntu/linux-image-oem-22.04 to a version that resolves this vulnerability.

    Fixed in 6.1.0.1029.30
  3. Upgrade

    Upgrade ubuntu/linux-image-oem-22.04a to a version that resolves this vulnerability.

    Fixed in 6.1.0.1029.30
  4. Upgrade

    Upgrade ubuntu/linux-image-oem-22.04b to a version that resolves this vulnerability.

    Fixed in 6.1.0.1029.30
  5. Upgrade

    Upgrade ubuntu/linux-image-oem-22.04c to a version that resolves this vulnerability.

    Fixed in 6.1.0.1029.30

Event History

Jan 25, 2024
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of USN-6606-1?

The severity of USN-6606-1 is considered high due to the potential for a local attacker to cause a denial of service or execute arbitrary code.

2

How do I fix USN-6606-1?

To fix USN-6606-1, upgrade to the specified patched versions of the Linux kernel, such as 6.1.0-1029.30.

3

What systems are affected by USN-6606-1?

USN-6606-1 affects Ubuntu 22.04 systems running specific versions of the Linux kernel marked vulnerable.

4

What type of vulnerability is reported in USN-6606-1?

USN-6606-1 reports a use-after-free vulnerability caused by a race condition in the Bluetooth subsystem of the Linux kernel.

5

Can USN-6606-1 lead to a remote attack?

No, USN-6606-1 is a local privilege escalation vulnerability and does not allow for remote attacks.

Contact

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