Security update for unbound

Announcement ID: SUSE-SU-2020:1772-1
Rating: important
References:
Cross-References:
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:
  • Basesystem Module 15-SP2
  • Basesystem Module 15-SP1
  • SUSE Linux Enterprise Desktop 15 SP1
  • SUSE Linux Enterprise Desktop 15 SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP1
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise Real Time 15 SP1
  • SUSE Linux Enterprise Real Time 15 SP2
  • SUSE Linux Enterprise Server 15 SP1
  • SUSE Linux Enterprise Server 15 SP1 Business Critical Linux 15-SP1
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • SUSE Manager Proxy 4.0
  • SUSE Manager Proxy 4.1
  • SUSE Manager Retail Branch Server 4.0
  • SUSE Manager Retail Branch Server 4.1
  • SUSE Manager Server 4.0
  • SUSE Manager Server 4.1

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:

  • Basesystem Module 15-SP1
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-1772=1
  • Basesystem Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2020-1772=1

Package List:

  • Basesystem Module 15-SP1 (aarch64 ppc64le s390x x86_64)
    • unbound-debuginfo-1.6.8-10.3.1
    • unbound-anchor-1.6.8-10.3.1
    • unbound-anchor-debuginfo-1.6.8-10.3.1
    • unbound-devel-1.6.8-10.3.1
    • unbound-debugsource-1.6.8-10.3.1
    • libunbound2-1.6.8-10.3.1
    • libunbound2-debuginfo-1.6.8-10.3.1
  • Basesystem Module 15-SP2 (aarch64 ppc64le s390x x86_64)
    • unbound-debuginfo-1.6.8-10.3.1
    • unbound-anchor-1.6.8-10.3.1
    • unbound-anchor-debuginfo-1.6.8-10.3.1
    • unbound-devel-1.6.8-10.3.1
    • unbound-debugsource-1.6.8-10.3.1
    • libunbound2-1.6.8-10.3.1
    • libunbound2-debuginfo-1.6.8-10.3.1

References: