USN-6898-4: Linux kernel vulnerabilities

Published Jul 23, 2024
·
Updated

Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could possibly trigger this vulnerability to cause a denial of service. (CVE-2022-38096) Gui-Dong Han discovered that the software RAID driver in the Linux kernel contained a race condition, leading to an integer overflow vulnerability. A privileged attacker could possibly use this to cause a denial of service (system crash). (CVE-2024-23307) It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel when modifying certain settings values through debugfs. A privileged local attacker could use this to cause a denial of service. (CVE-2024-24857, CVE-2024-24858, CVE-2024-24859) Bai Jiaju discovered that the Xceive XC4000 silicon tuner device driver in the Linux kernel contained a race condition, leading to an integer overflow vulnerability. An attacker could possibly use this to cause a denial of service (system crash). (CVE-2024-24861) Chenyuan Yang discovered that the Unsorted Block Images (UBI) flash device volume management subsystem did not properly validate logical eraseblock sizes in certain situations. An attacker could possibly use this to cause a denial of service (system crash). (CVE-2024-25739) 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

5 affected componentsFixes available
Ubuntu Linux kernel
All of the following
ubuntu/linux-image-5.15.0-1065-aws<5.15.0-1065.71~20.04.1
5.15.0-1065.71~20.04.1
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-aws<5.15.0.1065.71~20.04.1
5.15.0.1065.71~20.04.1
Ubuntu Ubuntu=20.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-5.15.0-1065-aws to a version that resolves this vulnerability.

    Fixed in 5.15.0-1065.71~20.04.1
  2. Upgrade

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

    Fixed in 5.15.0.1065.71~20.04.1
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch USN-6898-4

Event History

Jul 23, 2024
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software

Frequently Asked Questions

1

What is the severity of USN-6898-4?

The severity of USN-6898-4 is considered medium due to its potential to cause a denial of service.

2

How do I fix USN-6898-4?

To fix USN-6898-4, update to the patched version of the linux-image package provided by Ubuntu.

3

What vulnerability does USN-6898-4 address?

USN-6898-4 addresses a NULL pointer dereference vulnerability in the VMware Virtual GPU DRM driver.

4

Who discovered the vulnerability in USN-6898-4?

The vulnerability in USN-6898-4 was discovered by security researchers Ziming Zhang and Gui-Dong Han.

5

What systems are affected by USN-6898-4?

USN-6898-4 affects Ubuntu 20.04 systems running certain versions of the linux-image packages for AWS.

Contact

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