Security update for dhcp

Announcement ID: SUSE-SU-2016:1791-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2016-2774 ( NVD ): 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SUSE Linux Enterprise Desktop 12 SP1
  • SUSE Linux Enterprise Server 12 SP1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1
  • SUSE Linux Enterprise Software Development Kit 12 SP1

An update that solves one vulnerability and has one security fix can now be installed.

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 update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Enterprise Desktop 12 SP1
    zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2016-1048=1
  • SUSE Linux Enterprise Software Development Kit 12 SP1
    zypper in -t patch SUSE-SLE-SDK-12-SP1-2016-1048=1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1
    zypper in -t patch SUSE-SLE-SERVER-12-SP1-2016-1048=1
  • SUSE Linux Enterprise Server 12 SP1
    zypper in -t patch SUSE-SLE-SERVER-12-SP1-2016-1048=1

Package List:

  • SUSE Linux Enterprise Desktop 12 SP1 (x86_64)
    • dhcp-client-4.3.3-9.1
    • dhcp-client-debuginfo-4.3.3-9.1
    • dhcp-debuginfo-4.3.3-9.1
    • dhcp-4.3.3-9.1
    • dhcp-debugsource-4.3.3-9.1
  • SUSE Linux Enterprise Software Development Kit 12 SP1 (ppc64le s390x x86_64)
    • dhcp-debuginfo-4.3.3-9.1
    • dhcp-devel-4.3.3-9.1
    • dhcp-debugsource-4.3.3-9.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1 (ppc64le x86_64)
    • dhcp-relay-debuginfo-4.3.3-9.1
    • dhcp-server-debuginfo-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-relay-4.3.3-9.1
    • dhcp-server-4.3.3-9.1
    • dhcp-4.3.3-9.1
    • dhcp-debugsource-4.3.3-9.1
  • SUSE Linux Enterprise Server 12 SP1 (ppc64le s390x x86_64)
    • dhcp-relay-debuginfo-4.3.3-9.1
    • dhcp-server-debuginfo-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-relay-4.3.3-9.1
    • dhcp-server-4.3.3-9.1
    • dhcp-4.3.3-9.1
    • dhcp-debugsource-4.3.3-9.1

References: