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  • [SECURITY] [DSA 3466-1] krb5 security update

    From Salvatore Bonaccorso@1:229/2 to All on Thu Feb 4 22:10:01 2016
    From: [email protected]

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    - ------------------------------------------------------------------------- Debian Security Advisory DSA-3466-1 [email protected] 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: [email protected]
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