USN-5039-1

    Dashboard / Vulnerabilities / USN-5039-1

    USN-5039-1

    Published: 12 Aug 2021Last Modified: 29 Jun 2026

    Summary: linux, linux-aws, linux-kvm, linux-lts-xenial vulnerability

    Details: Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt() implementation. 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-5039-1, https://ubuntu.com/security/CVE-2021-22555

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=trusty%2Fesm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-187.238

    Affected versions

    3.11.0-12.19

    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-5039-1 | CVE-DB