CWE
416 476 362
Advisory Published

USN-6350-1: Linux kernel vulnerabilities

First published: Wed Sep 06 2023(Updated: )

It was discovered that the NTFS file system implementation in the Linux kernel did not properly validate MFT flags in certain situations. An attacker could use this to construct a malicious NTFS image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2022-48425) Zi Fan Tan discovered that the binder IPC implementation in the Linux kernel contained 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-2023-21255) It was discovered that a race condition existed in the f2fs file system in the Linux kernel, leading to a null pointer dereference vulnerability. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-2898) It was discovered that the DVB Core driver in the Linux kernel did not properly handle locking events in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2023-31084) Yang Lan discovered that the GFS2 file system implementation in the Linux kernel could attempt to dereference a null pointer in some situations. An attacker could use this to construct a malicious GFS2 image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-3212) It was discovered that the KSMBD implementation in the Linux kernel did not properly validate buffer sizes in certain operations, leading to an out-of- bounds read vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-38426, CVE-2023-38428) It was discovered that the KSMBD implementation in the Linux kernel did not properly calculate the size of certain buffers. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-38429)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.15.0-1042-oracle<5.15.0-1042.48
5.15.0-1042.48
=22.04
All of
ubuntu/linux-image-5.15.0-1044-aws<5.15.0-1044.49
5.15.0-1044.49
=22.04
All of
ubuntu/linux-image-aws-lts-22.04<5.15.0.1044.43
5.15.0.1044.43
=22.04
All of
ubuntu/linux-image-oracle-lts-22.04<5.15.0.1042.37
5.15.0.1042.37
=22.04
All of
ubuntu/linux-image-5.15.0-1037-ibm<5.15.0-1037.40~20.04.1
5.15.0-1037.40~20.04.1
=20.04
All of
ubuntu/linux-image-5.15.0-1042-oracle<5.15.0-1042.48~20.04.1
5.15.0-1042.48~20.04.1
=20.04
All of
ubuntu/linux-image-5.15.0-1044-aws<5.15.0-1044.49~20.04.1
5.15.0-1044.49~20.04.1
=20.04
All of
ubuntu/linux-image-aws<5.15.0.1044.49~20.04.32
5.15.0.1044.49~20.04.32
=20.04
All of
ubuntu/linux-image-ibm<5.15.0.1037.40~20.04.9
5.15.0.1037.40~20.04.9
=20.04
All of
ubuntu/linux-image-oracle<5.15.0.1042.48~20.04.1
5.15.0.1042.48~20.04.1
=20.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID of this advisory?

    The vulnerability ID of this advisory is USN-6350-1.

  • What is the title of this advisory?

    The title of this advisory is 'USN-6350-1: Linux kernel vulnerabilities'.

  • What is the description of the vulnerability?

    The NTFS file system implementation in the Linux kernel did not properly validate MFT flags, allowing an attacker to construct a malicious NTFS image that could cause a denial of service (system crash).

  • What software versions are affected by this vulnerability?

    The affected software versions include Ubuntu 22.04 with Linux kernel versions 5.15.0-1042.48 (Oracle), 5.15.0-1044.49 (AWS), 5.15.0.1044.43 (AWS LTS), 5.15.0.1042.37 (Oracle LTS), 5.15.0-1037.40~20.04.1 (IBM), 5.15.0-1042.48~20.04.1 (Oracle), 5.15.0-1044.49~20.04.1 (AWS), 5.15.0.1044.49~20.04.32 (AWS), 5.15.0.1037.40~20.04.9 (IBM), and 5.15.0.1042.48~20.04.1 (Oracle).

  • Are there any remediation steps available for this vulnerability?

    Yes, you can remediate this vulnerability by updating your Linux kernel to version 5.15.0-1042.48 (Oracle), 5.15.0-1044.49 (AWS), 5.15.0.1044.43 (AWS LTS), 5.15.0.1042.37 (Oracle LTS), 5.15.0-1037.40~20.04.1 (IBM), 5.15.0-1042.48~20.04.1 (Oracle), 5.15.0-1044.49~20.04.1 (AWS), 5.15.0.1044.49~20.04.32 (AWS), 5.15.0.1037.40~20.04.9 (IBM), or 5.15.0.1042.48~20.04.1 (Oracle).

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