UBUNTU-CVE-2017-16943

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    UBUNTU-CVE-2017-16943

    Published: 27 Nov 2017Last Modified: 4 Feb 2026
    Upstream:
    CVE-2017-16943
    Aliases:
    USN-3493-1

    Summary:

    Details: The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via vectors involving BDAT commands.

    References: https://ubuntu.com/security/CVE-2017-16943, https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html, https://ubuntu.com/security/notices/USN-3493-1, https://www.cve.org/CVERecord?id=CVE-2017-16943

    Affected packages

    Package

    Name: exim4

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.82-3ubuntu2.3

    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