USN-4001-1

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    USN-4001-1

    Published: 30 May 2019Last Modified: 22 Apr 2026

    Summary: libseccomp vulnerability

    Details: Jann Horn discovered that libseccomp did not correctly generate 64-bit syscall argument comparisons with arithmetic operators (LT, GT, LE, GE). An attacker could use this to bypass intended access restrictions for argument-filtered system calls.

    References: https://ubuntu.com/security/notices/USN-4001-1, https://ubuntu.com/security/CVE-2019-9893

    Affected packages

    Package

    Name: libseccomp

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.4.1-0ubuntu0.16.04.2

    Affected versions

    2.2.3-2ubuntu1
    2.2.3-2ubuntu2
    2.2.3-2ubuntu3
    2.2.3-3ubuntu1
    2.2.3-3ubuntu3

    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-4001-1 | CVE-DB