CVE-2003-0138

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    CVE-2003-0138

    Published: 24 Mar 2003Last Modified: 10 Apr 2026

    Summary:

    Details: Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.

    References: http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-004-krb4.txt, http://www.debian.org/security/2003/dsa-266, http://www.debian.org/security/2003/dsa-269, http://www.debian.org/security/2003/dsa-273, http://www.kb.cert.org/vuls/id/623217, http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-004-krb4.txt, http://www.debian.org/security/2003/dsa-266, http://www.kb.cert.org/vuls/id/623217, http://marc.info/?l=bugtraq&m=104791775804776&w=2, http://www.kb.cert.org/vuls/id/623217, http://www.redhat.com/support/errata/RHSA-2003-051.html, http://www.redhat.com/support/errata/RHSA-2003-052.html, http://www.redhat.com/support/errata/RHSA-2003-091.html, http://www.securityfocus.com/archive/1/316960/30/25250/threaded, http://www.securityfocus.com/bid/7113, https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A248

    Affected packages

    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
    CVE-2003-0138 | CVE-DB