Security update for dnsmasq

SUSE Security Update: Security update for dnsmasq
Announcement ID: SUSE-SU-2021:14604-1
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 Point of Sale 11-SP3
  • SUSE Linux Enterprise Debuginfo 11-SP3

An update that fixes 7 vulnerabilities is now available.


This update for dnsmasq fixes the following issues:
Security issues fixed:

  • CVE-2020-25684, CVE-2020-25685, CVE-2020-25686: Fixed multiple Cache Poisoning attacks (bsc#1177077).
  • CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687: Fixed multiple potential Heap-based overflows when DNSSEC is enabled (bsc#1177077).

Non-security issue fixed:
  • 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 Point of Sale 11-SP3:
    zypper in -t patch sleposp3-dnsmasq-14604=1
  • SUSE Linux Enterprise Debuginfo 11-SP3:
    zypper in -t patch dbgsp3-dnsmasq-14604=1

Package List:

  • SUSE Linux Enterprise Point of Sale 11-SP3 (i586):
    • dnsmasq-2.78-
  • SUSE Linux Enterprise Debuginfo 11-SP3 (i586 s390x x86_64):
    • dnsmasq-debuginfo-2.78-
    • dnsmasq-debugsource-2.78-