CWE
416 362
Advisory Published

USN-6173-1: Linux kernel (OEM) vulnerabilities

First published: Fri Jun 16 2023(Updated: )

Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained 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-2023-31436) It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform data buffer size validation 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 expose sensitive information. (CVE-2023-1380) Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service (bluetooth communication). (CVE-2023-2002) It was discovered that the IPv6 RPL protocol implementation in the Linux kernel did not properly handle user-supplied data. A remote attacker could use this to cause a denial of service (system crash). (CVE-2023-2156) Zheng Zhang discovered that the device-mapper implementation in the Linux kernel did not properly handle locking during table_clear() operations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2023-2269) Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling sessions operations. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-32250) Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel, leading to a use-after-free vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-32254)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-oem-22.04c<6.1.0.1014.14
6.1.0.1014.14
=22.04
All of
ubuntu/linux-image-6.1.0-1014-oem<6.1.0-1014.14
6.1.0-1014.14
=22.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2023-31436?

    The severity of CVE-2023-31436 is high.

  • How can a local attacker exploit CVE-2023-31436?

    A local attacker can exploit CVE-2023-31436 by causing a denial of service or possibly executing arbitrary code.

  • Which versions of Ubuntu are affected by CVE-2023-32254?

    Versions of Ubuntu 22.04 along with the linux-image-oem-22.04c package up to version 6.1.0.1014.14 are affected by CVE-2023-32254.

  • How can I fix CVE-2023-2002?

    To fix CVE-2023-2002, update the linux-image-6.1.0-1014-oem package to version 6.1.0-1014.14.

  • What is the Common Weakness Enumeration (CWE) ID for CVE-2023-2156?

    The Common Weakness Enumeration (CWE) ID for CVE-2023-2156 is 362.

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