[SECURITY] [DLA 1265-1] krb5 security update

Package : krb5
Version : 1.10.1+dfsg-5+deb7u9
CVE ID : CVE-2013-1418 CVE-2014-5351 CVE-2014-5353
CVE-2014-5355 CVE-2016-3119 CVE-2016-3120
Debian Bug : 728845 762479 773226 778647 819468 832572

Kerberos, a system for authenticating users and services on a network,
was affected by several vulnerabilities. The Common Vulnerabilities
and Exposures project identifies the following issues.

CVE-2013-1418
Kerberos allows remote attackers to cause a denial of service
(NULL pointer dereference and daemon crash) via a crafted request
when multiple realms are configured.

CVE-2014-5351
Kerberos sends old keys in a response to a -randkey -keepold
request, which allows remote authenticated users to forge tickets by
leveraging administrative access.

CVE-2014-5353
When the KDC uses LDAP, allows remote authenticated users to cause a
denial of service (daemon crash) via a successful LDAP query with no
results, as demonstrated by using an incorrect object type for a
password policy.

CVE-2014-5355
Kerberos expects that a krb5_read_message data field is represented
as a string ending with a '\0' character, which allows remote
attackers to (1) cause a denial of service (NULL pointer
dereference) via a zero-byte version string or (2) cause a denial of
service (out-of-bounds read) by omitting the '\0' character,

CVE-2016-3119
Kerberos allows remote authenticated users to cause a denial of
service (NULL pointer dereference and daemon crash) via a crafted
request to modify a principal.

CVE-2016-3120
Kerberos allows remote authenticated users to cause a denial of
service (NULL pointer dereference and daemon crash) via an S4U2Self
request.

For Debian 7 "Wheezy", these problems have been fixed in version
1.10.1+dfsg-5+deb7u9.

We recommend that you upgrade your krb5 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS