USN-4096-1

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    USN-4096-1

    Published: 13 Aug 2019Last Modified: 7 Sept 2026

    Summary: linux-aws, linux-aws-hwe vulnerability

    Details: Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information (kernel memory).

    References: https://ubuntu.com/security/notices/USN-4096-1, https://ubuntu.com/security/CVE-2019-1125

    Affected packages

    Package

    Name: linux-aws-hwe

    Purl: pkg:deb/ubuntu/linux-aws-hwe?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.15.0-1045.47~16.04.1

    Affected versions

    4.15.0-1030.31~16.04.1
    4.15.0-1031.33~16.04.1
    4.15.0-1032.34~16.04.1
    4.15.0-1033.35~16.04.1
    4.15.0-1035.37~16.04.1
    4.15.0-1036.38~16.04.1
    4.15.0-1039.41~16.04.1
    4.15.0-1040.42~16.04.1
    4.15.0-1041.43~16.04.1
    4.15.0-1043.45~16.04.1
    4.15.0-1044.46~16.04.1

    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