SUSE-SU-2021:14603-1: important: Security update for dnsmasq

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for dnsmasq
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:14603-1
Rating:             important
References:         #1154849 #1176076 #1177077 
Cross-References:   CVE-2019-14834 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 11-SP4-LTSS
                    SUSE Linux Enterprise Debuginfo 11-SP4
______________________________________________________________________________

   An update that fixes 8 vulnerabilities is now available.

Description:

   This update for dnsmasq fixes the following issues:

   - CVE-2019-14834: Fixed a memory leak which could have allowed to remote
     attackers to cause denial of service via DHCP response creation
     (bsc#1154849)
   - 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 11-SP4-LTSS:

      zypper in -t patch slessp4-dnsmasq-14603=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-dnsmasq-14603=1



Package List:

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 ppc64 s390x x86_64):

      dnsmasq-2.78-0.17.15.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ppc64 s390x x86_64):

      dnsmasq-debuginfo-2.78-0.17.15.1
      dnsmasq-debugsource-2.78-0.17.15.1


References:

   https://www.suse.com/security/cve/CVE-2019-14834.html
   https://www.suse.com/security/cve/CVE-2020-25681.html
   https://www.suse.com/security/cve/CVE-2020-25682.html
   https://www.suse.com/security/cve/CVE-2020-25683.html
   https://www.suse.com/security/cve/CVE-2020-25684.html
   https://www.suse.com/security/cve/CVE-2020-25685.html
   https://www.suse.com/security/cve/CVE-2020-25686.html
   https://www.suse.com/security/cve/CVE-2020-25687.html
   https://bugzilla.suse.com/1154849
   https://bugzilla.suse.com/1176076
   https://bugzilla.suse.com/1177077