UBUNTU-CVE-2017-9445

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    UBUNTU-CVE-2017-9445

    Published: 27 Jun 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-9445
    Aliases:
    USN-3341-1

    Summary:

    Details: In systemd through 233, certain sizes passed to dns_packet_new in systemd-resolved can cause it to allocate a buffer that's too small. A malicious DNS server can exploit this via a response with a specially crafted TCP payload to trick systemd-resolved into allocating a buffer that's too small, and subsequently write arbitrary data beyond the end of it.

    References: https://ubuntu.com/security/CVE-2017-9445, https://ubuntu.com/security/notices/USN-3341-1, https://www.cve.org/CVERecord?id=CVE-2017-9445

    Affected packages

    Package

    Name: systemd

    Purl: pkg:deb/ubuntu/systemd@229-4ubuntu19?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -229-4ubuntu19

    Affected versions

    225-1ubuntu9

    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
    UBUNTU-CVE-2017-9445 | CVE-DB