UBUNTU-CVE-2017-16944

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    UBUNTU-CVE-2017-16944

    Published: 27 Nov 2017Last Modified: 4 Feb 2026
    Upstream:
    CVE-2017-16944
    Aliases:
    USN-3499-1

    Summary:

    Details: The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to cause a denial of service (infinite loop and stack exhaustion) via vectors involving BDAT commands and an improper check for a '.' character signifying the end of the content, related to the bdat_getc function.

    References: https://ubuntu.com/security/CVE-2017-16944, https://ubuntu.com/security/notices/USN-3499-1, https://www.cve.org/CVERecord?id=CVE-2017-16944

    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