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    Debian: DSA-4055-1: heimdal security update

    Date
    257
    Posted By
    Michael Eder and Thomas Kittel discovered that Heimdal, an implementation of Kerberos 5 that aims to be compatible with MIT Kerberos, did not correctly handle ASN.1 data. This would allow an unauthenticated remote attacker to cause a denial of service (crash of
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-4055-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                       Sebastien Delafond
    December 07, 2017                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : heimdal
    CVE ID         : CVE-2017-17439
    Debian Bug     : 878144
    
    Michael Eder and Thomas Kittel discovered that Heimdal, an
    implementation of Kerberos 5 that aims to be compatible with MIT
    Kerberos, did not correctly handle ASN.1 data. This would allow an
    unauthenticated remote attacker to cause a denial of service (crash of
    the KDC daemon) by sending maliciously crafted packets.
    
    For the stable distribution (stretch), this problem has been fixed in
    version 7.1.0+dfsg-13+deb9u2.
    
    We recommend that you upgrade your heimdal packages.
    
    For the detailed security status of heimdal please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/heimdal
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

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