USN-5658-2

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    USN-5658-2

    Published: 7 Nov 2022Last Modified: 25 Jun 2026

    Summary: isc-dhcp vulnerabilities

    Details: USN-5658-1 fixed vulnerabilities in DHCP. This update provides the corresponding updates for Ubuntu 16.04 ESM. Original advisory details: It was discovered that DHCP incorrectly handled option reference counting. A remote attacker could possibly use this issue to cause DHCP servers to crash, resulting in a denial of service. (CVE-2022-2928) It was discovered that DHCP incorrectly handled certain memory operations. A remote attacker could possibly use this issue to cause DHCP clients and servers to consume resources, leading to a denial of service. (CVE-2022-2929)

    References: https://ubuntu.com/security/notices/USN-5658-2, https://ubuntu.com/security/CVE-2022-2928, https://ubuntu.com/security/CVE-2022-2929

    Affected packages

    Package

    Name: isc-dhcp

    Purl: pkg:deb/ubuntu/isc-dhcp?arch=source&distro=esm-infra%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.3.3-5ubuntu12.10+esm2

    Affected versions

    4.3.1-5ubuntu3
    4.3.1-5ubuntu4
    4.3.1-5ubuntu5
    4.3.3-5ubuntu1
    4.3.3-5ubuntu2
    4.3.3-5ubuntu4
    4.3.3-5ubuntu5
    4.3.3-5ubuntu7
    4.3.3-5ubuntu8
    4.3.3-5ubuntu9
    4.3.3-5ubuntu10
    4.3.3-5ubuntu11
    4.3.3-5ubuntu12
    4.3.3-5ubuntu12.1
    4.3.3-5ubuntu12.3
    4.3.3-5ubuntu12.4
    4.3.3-5ubuntu12.6
    4.3.3-5ubuntu12.7
    4.3.3-5ubuntu12.9
    4.3.3-5ubuntu12.10
    4.3.3-5ubuntu12.10+esm1

    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-5658-2 | CVE-DB