USN-4934-2

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    USN-4934-2

    Published: 6 May 2021Last Modified: 29 Jun 2026

    Summary: exim4 vulnerabilities

    Details: USN-4934-1 fixed several vulnerabilities in Exim. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. CVE-2020-28026 only affected Ubuntu 16.04 ESM. Original advisory details: It was discovered that Exim contained multiple security issues. An attacker could use these issues to cause a denial of service, execute arbitrary code remotely, obtain sensitive information, or escalate local privileges.

    References: https://ubuntu.com/security/notices/USN-4934-2, https://ubuntu.com/security/CVE-2020-28007, https://ubuntu.com/security/CVE-2020-28008, https://ubuntu.com/security/CVE-2020-28009, https://ubuntu.com/security/CVE-2020-28011, https://ubuntu.com/security/CVE-2020-28012, https://ubuntu.com/security/CVE-2020-28013, https://ubuntu.com/security/CVE-2020-28014, https://ubuntu.com/security/CVE-2020-28015, https://ubuntu.com/security/CVE-2020-28016, https://ubuntu.com/security/CVE-2020-28017, https://ubuntu.com/security/CVE-2020-28020, https://ubuntu.com/security/CVE-2020-28022, https://ubuntu.com/security/CVE-2020-28024, https://ubuntu.com/security/CVE-2020-28025, https://ubuntu.com/security/CVE-2020-28026, https://ubuntu.com/security/CVE-2021-27216

    Affected packages

    Package

    Name: exim4

    Purl: pkg:deb/ubuntu/exim4?arch=source&distro=trusty%2Fesm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.82-3ubuntu2.4+esm3

    Affected versions

    4.80-7ubuntu3

    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-4934-2 | CVE-DB