Security update for unbound

Announcement ID:	SUSE-SU-2020:1819-1
Rating:	important
References:	bsc#1157268 bsc#1171889
Cross-References:	CVE-2019-18934 CVE-2020-12662 CVE-2020-12663
CVSS scores:	CVE-2019-18934 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2019-18934 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVE-2020-12662 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVE-2020-12662 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2020-12663 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2020-12663 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:	SUSE Linux Enterprise High Performance Computing 15 SUSE Linux Enterprise High Performance Computing 15 LTSS 15 SUSE Linux Enterprise Server 15 SUSE Linux Enterprise Server 15 LTSS 15 SUSE Linux Enterprise Server ESPOS 15 SUSE Linux Enterprise Server for SAP Applications 15

An update that solves three vulnerabilities can now be installed.

Description:

This update for unbound fixes the following issues:

• CVE-2020-12662: Fixed an issue where unbound could have been tricked into amplifying an incoming query into a large number of queries directed to a target (bsc#1171889).
• CVE-2020-12663: Fixed an issue where malformed answers from upstream name servers could have been used to make unbound unresponsive (bsc#1171889).
• CVE-2019-18934: Fixed a vulnerability in the IPSec module which could have allowed code execution after receiving a special crafted answer (bsc#1157268).

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 Server ESPOS 15
  zypper in -t patch SUSE-SLE-Product-HPC-15-2020-1819=1
• SUSE Linux Enterprise High Performance Computing 15 LTSS 15
  zypper in -t patch SUSE-SLE-Product-HPC-15-2020-1819=1
• SUSE Linux Enterprise Server 15 LTSS 15
  zypper in -t patch SUSE-SLE-Product-SLES-15-2020-1819=1
• SUSE Linux Enterprise Server for SAP Applications 15
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2020-1819=1

Package List:

• SUSE Linux Enterprise Server ESPOS 15 (aarch64 x86_64)
  • unbound-debuginfo-1.6.8-3.6.1
  • unbound-anchor-1.6.8-3.6.1
  • unbound-debugsource-1.6.8-3.6.1
  • unbound-anchor-debuginfo-1.6.8-3.6.1
  • unbound-devel-1.6.8-3.6.1
  • libunbound2-1.6.8-3.6.1
  • libunbound2-debuginfo-1.6.8-3.6.1
• SUSE Linux Enterprise High Performance Computing 15 LTSS 15 (aarch64 x86_64)
  • unbound-debuginfo-1.6.8-3.6.1
  • unbound-anchor-1.6.8-3.6.1
  • unbound-debugsource-1.6.8-3.6.1
  • unbound-anchor-debuginfo-1.6.8-3.6.1
  • unbound-devel-1.6.8-3.6.1
  • libunbound2-1.6.8-3.6.1
  • libunbound2-debuginfo-1.6.8-3.6.1
• SUSE Linux Enterprise Server 15 LTSS 15 (aarch64 ppc64le s390x x86_64)
  • unbound-debuginfo-1.6.8-3.6.1
  • unbound-anchor-1.6.8-3.6.1
  • unbound-debugsource-1.6.8-3.6.1
  • unbound-anchor-debuginfo-1.6.8-3.6.1
  • unbound-devel-1.6.8-3.6.1
  • libunbound2-1.6.8-3.6.1
  • libunbound2-debuginfo-1.6.8-3.6.1
• SUSE Linux Enterprise Server for SAP Applications 15 (ppc64le x86_64)
  • unbound-debuginfo-1.6.8-3.6.1
  • unbound-anchor-1.6.8-3.6.1
  • unbound-debugsource-1.6.8-3.6.1
  • unbound-anchor-debuginfo-1.6.8-3.6.1
  • unbound-devel-1.6.8-3.6.1
  • libunbound2-1.6.8-3.6.1
  • libunbound2-debuginfo-1.6.8-3.6.1

References:

• https://www.suse.com/security/cve/CVE-2019-18934.html
• https://www.suse.com/security/cve/CVE-2020-12662.html
• https://www.suse.com/security/cve/CVE-2020-12663.html
• https://bugzilla.suse.com/show_bug.cgi?id=1157268
• https://bugzilla.suse.com/show_bug.cgi?id=1171889