CWE
416 476 362
Advisory Published

USN-6186-1: Linux kernel vulnerabilities

First published: Thu Jun 22 2023(Updated: )

Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, 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-2023-32233) 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) Reima Ishii discovered that the nested KVM implementation for Intel x86 processors in the Linux kernel did not properly validate control registers in certain situations. An attacker in a guest VM could use this to cause a denial of service (guest crash). (CVE-2023-30456) 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) William Zhao discovered that the Traffic Control (TC) subsystem in the Linux kernel did not properly handle network packet retransmission in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2022-4269) It was discovered that the io_uring subsystem in the Linux kernel did not properly perform file table updates in some situations, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-1583) It was discovered that a race condition existed in the btrfs file system implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-1611) It was discovered that the Xircom PCMCIA network device driver in the Linux kernel did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2023-1670) It was discovered that the APM X-Gene SoC hardware monitoring driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information (kernel memory). (CVE-2023-1855) It was discovered that a race condition existed in the Xen transport layer implementation for the 9P file system protocol in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2023-1859) It was discovered that a race condition existed in the Bluetooth HCI SDIO driver, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-1989) It was discovered that the ST NCI NFC driver did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2023-1990) It was discovered that the SLIMpro I2C device driver in the Linux kernel did not properly validate user-supplied data in some situations, leading to an out-of-bounds write vulnerability. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-2194) It was discovered that the perf subsystem in the Linux kernel contained a use-after-free vulnerability. A privileged local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-2235) Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2023-2612) It was discovered that a race condition existed in the TLS subsystem in the Linux kernel, leading to a use-after-free or a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-28466) It was discovered that the Bluetooth subsystem in the Linux kernel did not properly initialize some data structures, leading to an out-of-bounds access vulnerability in certain situations. An attacker could use this to expose sensitive information (kernel memory). (CVE-2023-28866) It was discovered that the DA9150 charger driver in the Linux kernel did not properly handle device removal, leading to a user-after free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-30772) It was discovered that the Qualcomm EMAC ethernet driver in the Linux kernel did not properly handle device removal, leading to a user-after free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-33203) It was discovered that the BQ24190 charger driver in the Linux kernel did not properly handle device removal, leading to a user-after free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-33288)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-6.2.0-1006-kvm<6.2.0-1006.6
6.2.0-1006.6
=23.04
All of
ubuntu/linux-image-ibm<6.2.0.1003.3
6.2.0.1003.3
=23.04
All of
ubuntu/linux-image-6.2.0-1007-gcp<6.2.0-1007.7
6.2.0-1007.7
=23.04
All of
ubuntu/linux-image-6.2.0-1005-oracle<6.2.0-1005.5
6.2.0-1005.5
=23.04
All of
ubuntu/linux-image-6.2.0-1003-ibm<6.2.0-1003.3
6.2.0-1003.3
=23.04
All of
ubuntu/linux-image-azure<6.2.0.1005.5
6.2.0.1005.5
=23.04
All of
ubuntu/linux-image-6.2.0-1005-azure<6.2.0-1005.5
6.2.0-1005.5
=23.04
All of
ubuntu/linux-image-kvm<6.2.0.1006.6
6.2.0.1006.6
=23.04
All of
ubuntu/linux-image-gcp<6.2.0.1007.7
6.2.0.1007.7
=23.04
All of
ubuntu/linux-image-oracle<6.2.0.1005.5
6.2.0.1005.5
=23.04

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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-6186-1.

  • What is the severity of USN-6186-1?

    The severity of USN-6186-1 is not specified in the provided information. Please refer to the official advisory for more details.

  • How does the vulnerability in USN-6186-1 affect the Linux kernel?

    The vulnerability in USN-6186-1 affects the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability.

  • What are the potential impacts of the vulnerability in USN-6186-1?

    The potential impacts of the vulnerability in USN-6186-1 include a denial of service (system crash) or possible execution of arbitrary code by a local attacker.

  • How can I fix the vulnerability in USN-6186-1?

    To fix the vulnerability in USN-6186-1, it is recommended to update the affected software to the specified versions mentioned in the advisory.

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