CWE
416 362
Advisory Published

USN-5925-1: Linux kernel vulnerabilities

First published: Mon Mar 06 2023(Updated: )

It was discovered that the Upper Level Protocol (ULP) subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, 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-2023-0461) It was discovered that a race condition existed in the Kernel Connection Multiplexor (KCM) socket implementation in the Linux kernel when releasing sockets in certain situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3521) It was discovered that the Netronome Ethernet driver 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-2022-3545) It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking in some situations. A physically proximate attacker could use this to craft a malicious USB device that when inserted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3628) It was discovered that a use-after-free vulnerability existed in the Bluetooth stack in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3640) It was discovered that a race condition existed in the Xen network backend driver in the Linux kernel when handling dropped packets in certain circumstances. An attacker could use this to cause a denial of service (kernel deadlock). (CVE-2022-42328, CVE-2022-42329) Tamás Koczka discovered that the Bluetooth L2CAP implementation in the Linux kernel did not properly initialize memory in some situations. A physically proximate attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2022-42895)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.15.0-1146-snapdragon<4.15.0-1146.156
4.15.0-1146.156
=18.04
All of
ubuntu/linux-image-4.15.0-1136-kvm<4.15.0-1136.141
4.15.0-1136.141
=18.04
All of
ubuntu/linux-image-snapdragon<4.15.0.1146.145
4.15.0.1146.145
=18.04
All of
ubuntu/linux-image-4.15.0-1128-raspi2<4.15.0-1128.136
4.15.0-1128.136
=18.04
All of
ubuntu/linux-image-kvm<4.15.0.1136.127
4.15.0.1136.127
=18.04
All of
ubuntu/linux-image-raspi2<4.15.0.1128.123
4.15.0.1128.123
=18.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-5925-1?

    The severity of USN-5925-1 is moderate.

  • How can this vulnerability be exploited?

    This vulnerability can be exploited by a local attacker to cause a denial of service or execute arbitrary code.

  • What software versions are affected by USN-5925-1?

    The affected software versions are linux-image-4.15.0-1146-snapdragon, linux-image-4.15.0-1136-kvm, linux-image-snapdragon, linux-image-4.15.0-1128-raspi2, linux-image-kvm, and linux-image-raspi2.

  • How do I fix USN-5925-1?

    To fix the vulnerability, update the Linux kernel to version 4.15.0-1146.156 or higher.

  • Where can I find more information about USN-5925-1?

    More information about USN-5925-1 can be found on the Ubuntu security advisory page.

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