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    Debian: DSA-3466-1: krb5 security update

    Date 04 Feb 2016
    228
    Posted By LinuxSecurity Advisories
    Several vulnerabilities were discovered in krb5, the MIT implementation of Kerberos. The Common Vulnerabilities and Exposures project identifies the following problems:
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-3466-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    February 04, 2016                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : krb5
    CVE ID         : CVE-2015-8629 CVE-2015-8630 CVE-2015-8631
    Debian Bug     : 813126 813127 813296
    
    Several vulnerabilities were discovered in krb5, the MIT implementation
    of Kerberos. The Common Vulnerabilities and Exposures project identifies
    the following problems:
    
    CVE-2015-8629
    
        It was discovered that an authenticated attacker can cause kadmind
        to read beyond the end of allocated memory by sending a string
        without a terminating zero byte. Information leakage may be possible
        for an attacker with permission to modify the database.
    
    CVE-2015-8630
    
        It was discovered that an authenticated attacker with permission to
        modify a principal entry can cause kadmind to dereference a null
        pointer by supplying a null policy value but including KADM5_POLICY
        in the mask.
    
    CVE-2015-8631
    
        It was discovered that an authenticated attacker can cause kadmind
        to leak memory by supplying a null principal name in a request which
        uses one. Repeating these requests will eventually cause kadmind to
        exhaust all available memory.
    
    For the oldstable distribution (wheezy), these problems have been fixed
    in version 1.10.1+dfsg-5+deb7u7. The oldstable distribution (wheezy) is
    not affected by CVE-2015-8630.
    
    For the stable distribution (jessie), these problems have been fixed in
    version 1.12.1+dfsg-19+deb8u2.
    
    We recommend that you upgrade your krb5 packages.
    
    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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