USN-4221-1

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    USN-4221-1

    Published: 11 Dec 2019Last Modified: 29 Jun 2026

    Summary: libpcap vulnerability

    Details: It was discovered that libpcap did not properly validate PHB headers in some situations. An attacker could use this to cause a denial of service (memory exhaustion).

    References: https://ubuntu.com/security/notices/USN-4221-1, https://ubuntu.com/security/CVE-2019-15165

    Affected packages

    Package

    Name: libpcap

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.5.3-2ubuntu0.1

    Affected versions

    1.4.0-2

    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-4221-1 | CVE-DB