USN-3633-1

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    USN-3633-1

    Published: 24 Apr 2018Last Modified: 10 Feb 2026

    Summary: linux-euclid vulnerability

    Details: Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

    References: https://ubuntu.com/security/notices/USN-3633-1, https://ubuntu.com/security/CVE-2017-16995

    Affected packages

    Package

    Name: linux-euclid

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.4.0-9026.28

    Affected versions

    4.4.0-9019.20
    4.4.0-9020.21
    4.4.0-9021.22
    4.4.0-9022.23
    4.4.0-9023.24
    4.4.0-9025.27

    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-3633-1 | CVE-DB