Linux Security
Linux Security
Linux Security

Debian: DSA-3466-1: krb5 security update

Date 04 Feb 2016
249
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
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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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