Security update for dnsmasq

Announcement ID: SUSE-SU-2022:14940-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2021-3448 ( SUSE ): 4.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
  • CVE-2021-3448 ( NVD ): 4.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
  • CVE-2022-0934 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
  • CVE-2022-0934 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SUSE Linux Enterprise Point of Service 11 SP3

An update that solves two vulnerabilities and has one security fix can now be installed.

Description:

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).

Non-security fixes:

  • Removed cache size limit (bsc#1138743).

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:

  • SUSE Linux Enterprise Point of Service 11 SP3
    zypper in -t patch sleposp3-dnsmasq-14940=1

Package List:

  • SUSE Linux Enterprise Point of Service 11 SP3 (i586)
    • dnsmasq-2.78-0.16.17.1

References: