USN-6386-1

    Dashboard / Vulnerabilities / USN-6386-1

    USN-6386-1

    Published: 19 Sept 2023Last Modified: 3 Jun 2026

    Summary: linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia vulnerabilities

    Details: Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii Oleksenko discovered that some AMD processors could leak stale data from division operations in certain situations. A local attacker could possibly use this to expose sensitive information. (CVE-2023-20588) 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) Lonial Con discovered that the netfilter subsystem in the Linux kernel contained a memory leak when handling certain element flush operations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2023-4569)

    References: https://ubuntu.com/security/notices/USN-6386-1, https://ubuntu.com/security/CVE-2023-4128, https://ubuntu.com/security/CVE-2023-4569, https://ubuntu.com/security/CVE-2023-20588, https://ubuntu.com/security/CVE-2023-40283

    Affected packages

    Package

    Name: linux-aws-5.15

    Purl: pkg:deb/ubuntu/linux-aws-5.15?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.15.0-1045.50~20.04.1

    Affected versions

    5.15.0-1014.18~20.04.1
    5.15.0-1015.19~20.04.1
    5.15.0-1017.21~20.04.1
    5.15.0-1019.23~20.04.1
    5.15.0-1020.24~20.04.1
    5.15.0-1021.25~20.04.1
    5.15.0-1022.26~20.04.1
    5.15.0-1023.27~20.04.1
    5.15.0-1026.30~20.04.2
    5.15.0-1027.31~20.04.1
    5.15.0-1028.32~20.04.1
    5.15.0-1030.34~20.04.1
    5.15.0-1031.35~20.04.1
    5.15.0-1033.37~20.04.1
    5.15.0-1034.38~20.04.1
    5.15.0-1035.39~20.04.1
    5.15.0-1036.40~20.04.1
    5.15.0-1037.41~20.04.1
    5.15.0-1038.43~20.04.1
    5.15.0-1039.44~20.04.1
    5.15.0-1040.45~20.04.1
    5.15.0-1041.46~20.04.1
    5.15.0-1043.48~20.04.1
    5.15.0-1044.49~20.04.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    USN-6386-1 | CVE-DB