Security update for bind

Announcement ID: SUSE-SU-2021:14714-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2021-25214 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-25214 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-25215 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-25215 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-25216 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2021-25216 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Enterprise Point of Service 11 SP3
  • SUSE Linux Enterprise Server 11 SP4
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4

An update that solves three vulnerabilities can now be installed.

Description:

This update for bind fixes the following issues:

  • CVE-2021-25214: Fixed a broken inbound incremental zone update (IXFR) which could have caused named to terminate unexpectedly (bsc#1185345).
  • CVE-2021-25215: Fixed an assertion check which could have failed while answering queries for DNAME records that required the DNAME to be processed to resolve itself (bsc#1185345).
  • CVE-2021-25216: Fixed an issue where policy negotiation can be targeted by a buffer overflow attack (bsc#1185345).

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-bind-14714=1
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4
    zypper in -t patch slessp4-bind-14714=1
  • SUSE Linux Enterprise Server 11 SP4
    zypper in -t patch slessp4-bind-14714=1

Package List:

  • SUSE Linux Enterprise Point of Service 11 SP3 (i586)
    • bind-devel-9.9.6P1-0.51.26.1
    • bind-utils-9.9.6P1-0.51.26.1
    • bind-9.9.6P1-0.51.26.1
    • bind-libs-9.9.6P1-0.51.26.1
    • bind-doc-9.9.6P1-0.51.26.1
    • bind-chrootenv-9.9.6P1-0.51.26.1
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4 (ppc64 s390x x86_64 i586)
    • bind-utils-9.9.6P1-0.51.26.1
    • bind-9.9.6P1-0.51.26.1
    • bind-libs-9.9.6P1-0.51.26.1
    • bind-doc-9.9.6P1-0.51.26.1
    • bind-chrootenv-9.9.6P1-0.51.26.1
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4 (ppc64 s390x x86_64)
    • bind-libs-32bit-9.9.6P1-0.51.26.1
  • SUSE Linux Enterprise Server 11 SP4 (ppc64 s390x x86_64 i586)
    • bind-utils-9.9.6P1-0.51.26.1
    • bind-9.9.6P1-0.51.26.1
    • bind-libs-9.9.6P1-0.51.26.1
    • bind-doc-9.9.6P1-0.51.26.1
    • bind-chrootenv-9.9.6P1-0.51.26.1
  • SUSE Linux Enterprise Server 11 SP4 (ppc64 s390x x86_64)
    • bind-libs-32bit-9.9.6P1-0.51.26.1

References: