SUSE Security Update: Security update for dnsmasq ______________________________________________________________________________

Announcement ID: SUSE-SU-2017:2616-1 Rating: important References: #1035227 #1060354 #1060355 #1060360 #1060361 #1060362 #1060364 #902511 #904537 #908137 #972164 Cross-References: CVE-2015-3294 CVE-2015-8899 CVE-2017-14491 CVE-2017-14492 CVE-2017-14493 CVE-2017-14494 CVE-2017-14495 CVE-2017-14496 Affected Products: SUSE Linux Enterprise Server 12-LTSS ______________________________________________________________________________

An update that solves 8 vulnerabilities and has three fixes is now available.

Description:

This update for dnsmasq fixes the following issues.

Remedy the following security issues:

- CVE-2017-14491: 2 byte heap based overflow. [bsc#1060354] - CVE-2017-14492: heap based overflow. [bsc#1060355] - CVE-2017-14493: stack based overflow. [bsc#1060360] - CVE-2017-14494: DHCP - info leak. [bsc#1060361] - CVE-2017-14495: DNS - OOM DoS. [bsc#1060362] - CVE-2017-14496: DNS - DoS Integer underflow. [bsc#1060364] - Prevent a man-in-the-middle attack (bsc#972164, fate#321175).

Furthermore, the following issues have been fixed:

- Fix DHCP relaying, broken in 2.76 and 2.77. - Update to version 2.78 (fate#321175, fate#322030, bsc#1035227). - Fix PXE booting for UEFI architectures (fate#322030). - Drop PrivateDevices=yes which breaks logging (bsc#902511, bsc#904537) - Build with support for DNSSEC (fate#318323, bsc#908137).

Please note that this update brings a (small) potential incompatibility in the handling of "basename" in --pxe-service. Please read the CHANGELOG and the documentation if you are using this option.

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 Server 12-LTSS:

zypper in -t patch SUSE-SLE-SERVER-12-2017-1616=1

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

Package List:

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

dnsmasq-2.78-6.6.1 dnsmasq-debuginfo-2.78-6.6.1 dnsmasq-debugsource-2.78-6.6.1

References:

https://www.suse.com/security/cve/CVE-2015-3294.html https://www.suse.com/security/cve/CVE-2015-8899.html https://www.suse.com/security/cve/CVE-2017-14491.html https://www.suse.com/security/cve/CVE-2017-14492.html https://www.suse.com/security/cve/CVE-2017-14493.html https://www.suse.com/security/cve/CVE-2017-14494.html https://www.suse.com/security/cve/CVE-2017-14495.html https://www.suse.com/security/cve/CVE-2017-14496.html https://bugzilla.suse.com/1035227 https://bugzilla.suse.com/1060354 https://bugzilla.suse.com/1060355 https://bugzilla.suse.com/1060360 https://bugzilla.suse.com/1060361 https://bugzilla.suse.com/1060362 https://bugzilla.suse.com/1060364 https://bugzilla.suse.com/902511 https://bugzilla.suse.com/904537 https://bugzilla.suse.com/908137 https://bugzilla.suse.com/972164