SUSE-SU-2016:1791-1: moderate: Security update for dhcp

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for dhcp
______________________________________________________________________________

Announcement ID:    SUSE-SU-2016:1791-1
Rating:             moderate
References:         #969820 #972907 
Cross-References:   CVE-2016-2774
Affected Products:
                    SUSE Linux Enterprise Software Development Kit 12-SP1
                    SUSE Linux Enterprise Server 12-SP1
                    SUSE Linux Enterprise Desktop 12-SP1
______________________________________________________________________________

   An update that solves one vulnerability and has one errata
   is now available.

Description:


   This update for dhcp fixes the following issues:

   Security issue fixed:
   - CVE-2016-2774: Fixed a denial of service attack against the DHCP server
     over the OMAPI TCP socket, which could be used by network adjacent
     attackers to make the DHCP server non-functional (bsc#969820).

   Non security issues fixed:
   - Rename freeaddrinfo(), getaddrinfo() and getnameinfo() in the internal
     libirs library that does not consider /etc/hosts and /etc/nsswitch.conf
     to use irs_ prefix. This prevents name conflicts which would result in
     overriding standard glibc functions used by libldap. (bsc#972907)


Patch Instructions:

   To install this SUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Software Development Kit 12-SP1:

      zypper in -t patch SUSE-SLE-SDK-12-SP1-2016-1048=1

   - SUSE Linux Enterprise Server 12-SP1:

      zypper in -t patch SUSE-SLE-SERVER-12-SP1-2016-1048=1

   - SUSE Linux Enterprise Desktop 12-SP1:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2016-1048=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - SUSE Linux Enterprise Software Development Kit 12-SP1 (ppc64le s390x x86_64):

      dhcp-debuginfo-4.3.3-9.1
      dhcp-debugsource-4.3.3-9.1
      dhcp-devel-4.3.3-9.1

   - SUSE Linux Enterprise Server 12-SP1 (ppc64le s390x x86_64):

      dhcp-4.3.3-9.1
      dhcp-client-4.3.3-9.1
      dhcp-client-debuginfo-4.3.3-9.1
      dhcp-debuginfo-4.3.3-9.1
      dhcp-debugsource-4.3.3-9.1
      dhcp-relay-4.3.3-9.1
      dhcp-relay-debuginfo-4.3.3-9.1
      dhcp-server-4.3.3-9.1
      dhcp-server-debuginfo-4.3.3-9.1

   - SUSE Linux Enterprise Desktop 12-SP1 (x86_64):

      dhcp-4.3.3-9.1
      dhcp-client-4.3.3-9.1
      dhcp-client-debuginfo-4.3.3-9.1
      dhcp-debuginfo-4.3.3-9.1
      dhcp-debugsource-4.3.3-9.1


References:

   https://www.suse.com/security/cve/CVE-2016-2774.html
   https://bugzilla.suse.com/969820
   https://bugzilla.suse.com/972907