[Oraclevm-errata] OVMSA-2014-0034 Moderate: Oracle VM 3.3 krb5 security update

Errata Announcements for Oracle VM oraclevm-errata at oss.oracle.com
Tue Nov 4 09:37:38 PST 2014

Oracle VM Security Advisory OVMSA-2014-0034

The following updated rpms for Oracle VM 3.3 have been uploaded to the 
Unbreakable Linux Network:



Description of changes:

- actually apply that last patch

- incorporate fix for MITKRB5-SA-2014-001 (CVE-2014-4345, #1128157)

- ksu: when evaluating .k5users, don't throw away data from .k5users 
when we're
   not passed a command to run, which implicitly means we're attempting 
to run
   the target user's shell (#1026721, revised)

- ksu: when evaluating .k5users, treat lines with just a principal name 
as if
   they contained the principal name followed by '*', and don't throw 
away data
   from .k5users when we're not passed a command to run, which 
implicitly means
   we're attempting to run the target user's shell (#1026721, revised)

- gssapi: pull in upstream fix for a possible NULL dereference in spnego
   (CVE-2014-4344, #1121510)
- gssapi: pull in proposed-and-accepted fix for a double free in initiators
   (David Woodhouse, CVE-2014-4343, #1121510)

- correct a type mistake in the backported fix for 

- pull in backported fix for denial of service by injection of malformed
   GSSAPI tokens (CVE-2014-4341, CVE-2014-4342, #1121510)
- incorporate backported patch for remote crash of KDCs which serve multiple
   realms simultaneously (RT#7756, CVE-2013-1418/CVE-2013-6800, more of

- pull in backport of patch to not subsequently always require that 
   come from master KDCs if we get one from a master somewhere along the way
   while chasing referrals (RT#7650, #1113652)

- ksu: if the -e flag isn't used, use the target user's shell when checking
   for authorization via the target user's .k5users file (#1026721)

- define _GNU_SOURCE in files where we use EAI_NODATA, to make sure that
   it's declared (#1059730)

- spnego: pull in patch from master to restore preserving the OID of the
   mechanism the initiator requested when we have multiple OIDs for the same
   mechanism, so that we reply using the same mechanism OID and the 
   doesn't get confused (#1087068, RT#7858)

- add patch from Jatin Nansi to avoid attempting to clear memory at the
   NULL address if krb5_encrypt_helper() returns an error when called
   from encrypt_credencpart() (#1055329, pull #158)

- drop patch to add additional access() checks to ksu - they shouldn't be
   resulting in any benefit

- apply patch from Nikolai Kondrashov to pass a default realm set in
   /etc/sysconfig/krb5kdc to the kdb_check_weak helper, so that it doesn't
   produce an error if there isn't one set in krb5.conf (#1009389)

- packaging: don't Obsoletes: older versions of krb5-pkinit-openssl and
   virtual Provide: krb5-pkinit-openssl on EL6, where we don't need to
   bother with any of that (#1001961)

- pkinit: backport tweaks to avoid trying to call the prompter callback
   when one isn't set (part of #965721)
- pkinit: backport the ability to use a prompter callback to prompt for
   a password when reading private keys (the rest of #965721)

- backport fix to not spin on a short read when reading the length of a
   response over TCP (RT#7508, #922884)

- backport fix for trying all compatible keys when not being strict about
   acceptor names while reading AP-REQs (RT#7883, #1070244)

- backport fix for not being able to verify the list of transited realms
   in GSS acceptors (RT#7639, #959685)

- pull fix for keeping track of the message type when parsing FAST 
requests in
   the KDC (RT#7605, #951965)

- incorporate upstream patch to fix a NULL pointer dereference while 
   certain TGS requests (CVE-2013-1416, #950343)
- incorporate upstream patch to fix a NULL pointer dereference when the 
   supplies an otherwise-normal-looking PKINIT request (CVE-2013-1415, 
- add patch to avoid dereferencing a NULL pointer in the KDC when handling a
   draft9 PKINIT request (#917910, CVE-2012-1016)

- pull up fix for UDP ping-pong flaw in kpasswd service (CVE-2002-2443,

- don't leak the memory used to hold the previous entry when walking a 
   to figure out which kinds of keys we have (#911147)

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