Security update for dnsmasq

SUSE Security Update: Security update for dnsmasq
Announcement ID: SUSE-SU-2021:0162-1
Rating: important
References: #1176076 #1177077
Cross-References:CVE-2020-25681 CVE-2020-25682 CVE-2020-25683 CVE-2020-25684 CVE-2020-25685 CVE-2020-25686 CVE-2020-25687
Affected Products:
  • SUSE Linux Enterprise Server for SAP 15
  • SUSE Linux Enterprise Server 15-LTSS
  • SUSE Linux Enterprise High Performance Computing 15-LTSS
  • SUSE Linux Enterprise High Performance Computing 15-ESPOS

An update that fixes 7 vulnerabilities is now available.

Description:

This update for dnsmasq fixes the following issues:

  • bsc#1177077: Fixed DNSpooq vulnerabilities
  • CVE-2020-25684, CVE-2020-25685, CVE-2020-25686: Fixed multiple Cache Poisoning attacks.
  • CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687: Fixed multiple potential Heap-based overflows when DNSSEC is enabled.
  • Retry query to other servers on receipt of SERVFAIL rcode (bsc#1176076)

Patch Instructions:

To install this SUSE Security 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 for SAP 15:
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2021-162=1
  • SUSE Linux Enterprise Server 15-LTSS:
    zypper in -t patch SUSE-SLE-Product-SLES-15-2021-162=1
  • SUSE Linux Enterprise High Performance Computing 15-LTSS:
    zypper in -t patch SUSE-SLE-Product-HPC-15-2021-162=1
  • SUSE Linux Enterprise High Performance Computing 15-ESPOS:
    zypper in -t patch SUSE-SLE-Product-HPC-15-2021-162=1

Package List:

  • SUSE Linux Enterprise Server for SAP 15 (ppc64le x86_64):
    • dnsmasq-2.78-3.11.1
    • dnsmasq-debuginfo-2.78-3.11.1
    • dnsmasq-debugsource-2.78-3.11.1
  • SUSE Linux Enterprise Server 15-LTSS (aarch64 s390x):
    • dnsmasq-2.78-3.11.1
    • dnsmasq-debuginfo-2.78-3.11.1
    • dnsmasq-debugsource-2.78-3.11.1
  • SUSE Linux Enterprise High Performance Computing 15-LTSS (aarch64 x86_64):
    • dnsmasq-2.78-3.11.1
    • dnsmasq-debuginfo-2.78-3.11.1
    • dnsmasq-debugsource-2.78-3.11.1
  • SUSE Linux Enterprise High Performance Computing 15-ESPOS (aarch64 x86_64):
    • dnsmasq-2.78-3.11.1
    • dnsmasq-debuginfo-2.78-3.11.1
    • dnsmasq-debugsource-2.78-3.11.1

References: