Security update for dnsmasq

SUSE Security Update: Security update for dnsmasq
Announcement ID: SUSE-SU-2022:14941-1
Rating: important
References: #1183709 #1197872
Cross-References:CVE-2021-3448 CVE-2022-0934
Affected Products:
  • SUSE Linux Enterprise Debuginfo 11-SP4
  • SUSE Linux Enterprise Server 11-SP4-LTSS

An update that fixes two vulnerabilities is now available.


This update for dnsmasq fixes the following issues:

  • CVE-2021-3448: Fixed a potential DNS cache poisoning issue due to a constant outgoing port being used when for certain use cases of the --server option (bsc#1183709).
  • CVE-2022-0934: Fixed an invalid memory access that could lead to remote denial of service via crafted packet (bsc#1197872).

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-14941=1
  • SUSE Linux Enterprise Debuginfo 11-SP4:
    zypper in -t patch dbgsp4-dnsmasq-14941=1

Package List:

  • SUSE Linux Enterprise Server 11-SP4-LTSS (i586 ppc64 s390x x86_64):
    • dnsmasq-2.78-
  • SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ppc64 s390x x86_64):
    • dnsmasq-debuginfo-2.78-
    • dnsmasq-debugsource-2.78-