CWE
416 476 362
Advisory Published

USN-6388-1: Linux kernel vulnerabilities

First published: Tue Sep 19 2023(Updated: )

Daniel Moghimi discovered that some Intel(R) Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. (CVE-2022-40982) 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 NET/ROM protocol implementation in the Linux kernel contained a race condition in some 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-2023-32269) It was discovered that the NFC implementation in the Linux kernel contained a use-after-free vulnerability when performing peer-to-peer communication in certain conditions. A privileged attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2023-3863) It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle L2CAP socket release, 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-2023-40283) It was discovered that some network classifier implementations in the Linux kernel contained use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4128) It was discovered that the JFS file system implementation in the Linux kernel did not properly validate memory allocations in certain situations, leading to a null pointer dereference vulnerability. An attacker could use this to construct a malicious JFS image that, when mounted, could cause a denial of service (system crash). (CVE-2023-4385) It was discovered that the VMware VMXNET3 ethernet driver in the Linux kernel contained a use-after-free vulnerability in certain situations. A local attacker in a guest VM could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4387) It was discovered that the VMware VMXNET3 ethernet driver in the Linux kernel did not properly handle errors in certain situations, leading to a null pointer dereference vulnerability. A local attacker in a guest VM could use this to cause a denial of service (system crash). (CVE-2023-4459)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.4.0-1124-kvm<4.4.0-1124.134
4.4.0-1124.134
=16.04
All of
ubuntu/linux-image-4.4.0-1161-aws<4.4.0-1161.176
4.4.0-1161.176
=16.04
All of
ubuntu/linux-image-4.4.0-245-generic<4.4.0-245.279
4.4.0-245.279
=16.04
All of
ubuntu/linux-image-4.4.0-245-lowlatency<4.4.0-245.279
4.4.0-245.279
=16.04
All of
ubuntu/linux-image-aws<4.4.0.1161.165
4.4.0.1161.165
=16.04
All of
ubuntu/linux-image-generic<4.4.0.245.251
4.4.0.245.251
=16.04
All of
ubuntu/linux-image-generic-lts-xenial<4.4.0.245.251
4.4.0.245.251
=16.04
All of
ubuntu/linux-image-kvm<4.4.0.1124.121
4.4.0.1124.121
=16.04
All of
ubuntu/linux-image-lowlatency<4.4.0.245.251
4.4.0.245.251
=16.04
All of
ubuntu/linux-image-lowlatency-lts-xenial<4.4.0.245.251
4.4.0.245.251
=16.04
All of
ubuntu/linux-image-virtual<4.4.0.245.251
4.4.0.245.251
=16.04
All of
ubuntu/linux-image-virtual-lts-xenial<4.4.0.245.251
4.4.0.245.251
=16.04
All of
ubuntu/linux-image-4.4.0-1123-aws<4.4.0-1123.129
4.4.0-1123.129
=14.04
All of
ubuntu/linux-image-4.4.0-245-generic<4.4.0-245.279~14.04.1
4.4.0-245.279~14.04.1
=14.04
All of
ubuntu/linux-image-4.4.0-245-lowlatency<4.4.0-245.279~14.04.1
4.4.0-245.279~14.04.1
=14.04
All of
ubuntu/linux-image-aws<4.4.0.1123.120
4.4.0.1123.120
=14.04
All of
ubuntu/linux-image-generic-lts-xenial<4.4.0.245.213
4.4.0.245.213
=14.04
All of
ubuntu/linux-image-lowlatency-lts-xenial<4.4.0.245.213
4.4.0.245.213
=14.04
All of
ubuntu/linux-image-virtual-lts-xenial<4.4.0.245.213
4.4.0.245.213
=14.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this advisory?

    The vulnerability ID for this advisory is USN-6388-1.

  • What is the severity of vulnerability USN-6388-1?

    The severity of vulnerability USN-6388-1 is not specified in the provided information.

  • What software versions are affected by vulnerability USN-6388-1?

    Vulnerability USN-6388-1 affects Ubuntu 16.04 (linux-image-4.4.0-1124-kvm, linux-image-4.4.0-1161-aws, linux-image-4.4.0-245-generic, linux-image-4.4.0-245-lowlatency, linux-image-aws, linux-image-generic, linux-image-generic-lts-xenial, linux-image-kvm, linux-image-lowlatency, linux-image-lowlatency-lts-xenial, linux-image-virtual, linux-image-virtual-lts-xenial) and Ubuntu 14.04 (linux-image-4.4.0-1123-aws, linux-image-4.4.0-245-generic, linux-image-4.4.0-245-lowlatency, linux-image-aws, linux-image-generic-lts-xenial, linux-image-lowlatency-lts-xenial, linux-image-virtual-lts-xenial).

  • How can I fix vulnerability USN-6388-1?

    To fix vulnerability USN-6388-1, update the affected Ubuntu packages to the specified remediation versions (e.g., linux-image-4.4.0-1124.134 for Ubuntu 16.04).

  • Where can I find more information about vulnerability USN-6388-1?

    You can find more information about vulnerability USN-6388-1 in the Ubuntu Security Notices at the provided reference links.

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