UBUNTU-CVE-2020-10188

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    UBUNTU-CVE-2020-10188

    Published: 6 Mar 2020Last Modified: 20 May 2026
    Upstream:
    CVE-2020-10188

    Summary:

    Details: utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a buffer overflow involving the netclear and nextitem functions.

    References: https://ubuntu.com/security/CVE-2020-10188, https://appgateresearch.blogspot.com/2020/02/bravestarr-fedora-31-netkit-telnetd_28.html, https://github.com/krb5/krb5-appl/blob/d00cd671dfe945791b33d4f1f6a5c57ae1667ef8/telnet/telnetd/utility.c#L205-L216, https://ubuntu.com/security/notices/USN-5048-1, https://ubuntu.com/security/notices/USN-5048-2, https://www.cve.org/CVERecord?id=CVE-2020-10188, https://ubuntu.com/security/notices/USN-7781-1

    Affected packages

    Package

    Name: inetutils

    Purl: pkg:deb/ubuntu/inetutils?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2:1.9.2-1ubuntu0.1~esm2

    Affected versions

    2:1.9.1.306-0a482-1
    2:1.9.1.363-bbc1-1
    2:1.9.2-1
    2:1.9.2-1ubuntu0.1~esm1

    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-2020-10188 | CVE-DB