UBUNTU-CVE-2016-9920

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    UBUNTU-CVE-2016-9920

    Published: 8 Dec 2016Last Modified: 31 Mar 2026
    Upstream:
    CVE-2016-9920
    Aliases:
    USN-8132-1

    Summary:

    Details: steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line, which allows remote authenticated users to execute arbitrary code via a modified HTTP request that sends a crafted e-mail message.

    References: https://ubuntu.com/security/CVE-2016-9920, https://blog.ripstech.com/2016/roundcube-command-execution-via-email/, http://www.openwall.com/lists/oss-security/2016/12/08/10, https://roundcube.net/news/2016/11/28/updates-1.2.3-and-1.1.7-released, https://www.cve.org/CVERecord?id=CVE-2016-9920, https://ubuntu.com/security/notices/USN-8132-1

    Affected packages

    Package

    Name: roundcube

    Purl: pkg:deb/ubuntu/[email protected]~beta+dfsg.1-0ubuntu1+esm7?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.2~beta+dfsg.1-0ubuntu1+esm7

    Affected versions

    1.1.1+dfsg.1-2
    1.1.2+dfsg.1-5
    1.1.3+dfsg.1-1
    1.1.4+dfsg.1-1

    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