Debian: DSA-4455-1: heimdal security update

    Date 03 Jun 2019
    4314
    Posted By LinuxSecurity Advisories
    Several vulnerabilities were discovered in Heimdal, an implementation of Kerberos 5 that aims to be compatible with MIT Kerberos. CVE-2018-16860
    
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    Debian Security Advisory DSA-4455-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    June 03, 2019                         https://www.debian.org/security/faq
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    Package        : heimdal
    CVE ID         : CVE-2018-16860 CVE-2019-12098
    Debian Bug     : 928966 929064
    
    Several vulnerabilities were discovered in Heimdal, an implementation of
    Kerberos 5 that aims to be compatible with MIT Kerberos.
    
    CVE-2018-16860
    
        Isaac Boukris and Andrew Bartlett discovered that Heimdal was
        susceptible to man-in-the-middle attacks caused by incomplete
        checksum validation. Details on the issue can be found in the Samba
        advisory at https://www.samba.org/samba/security/CVE-2018-16860.html
    
    CVE-2019-12098
    
        It was discovered that failure of verification of the PA-PKINIT-KX key
        exchange client-side could permit to perform man-in-the-middle attack.
    
    For the stable distribution (stretch), these problems have been fixed in
    version 7.1.0+dfsg-13+deb9u3.
    
    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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