Security update for bind

Announcement ID: SUSE-SU-2024:2862-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2024-1737 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2024-1975 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2024-4076 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • Basesystem Module 15-SP5
  • openSUSE Leap 15.5
  • Server Applications Module 15-SP5
  • SUSE Linux Enterprise Desktop 15 SP5
  • SUSE Linux Enterprise High Performance Computing 15 SP5
  • SUSE Linux Enterprise Micro 5.5
  • SUSE Linux Enterprise Real Time 15 SP5
  • SUSE Linux Enterprise Server 15 SP5
  • SUSE Linux Enterprise Server for SAP Applications 15 SP5

An update that solves three vulnerabilities can now be installed.

Description:

This update for bind fixes the following issues:

Update to 9.16.50:

  • Bug Fixes:
  • A regression in cache-cleaning code enabled memory use to grow significantly more quickly than before, until the configured max-cache-size limit was reached. This has been fixed.
  • Using rndc flush inadvertently caused cache cleaning to become less effective. This could ultimately lead to the configured max-cache-size limit being exceeded and has now been fixed.
  • The logic for cleaning up expired cached DNS records was tweaked to be more aggressive. This change helps with enforcing max-cache-ttl and max-ncache-ttl in a timely manner.
  • It was possible to trigger a use-after-free assertion when the overmem cache cleaning was initiated. This has been fixed. New Features:
  • Added RESOLVER.ARPA to the built in empty zones.
  • Security Fixes:
  • It is possible to craft excessively large numbers of resource record types for a given owner name, which has the effect of slowing down database processing. This has been addressed by adding a configurable limit to the number of records that can be stored per name and type in a cache or zone database. The default is 100, which can be tuned with the new max-types-per-name option. (CVE-2024-1737, bsc#1228256)
  • Validating DNS messages signed using the SIG(0) protocol (RFC 2931) could cause excessive CPU load, leading to a denial-of-service condition. Support for SIG(0) message validation was removed from this version of named. (CVE-2024-1975, bsc#1228257)
  • When looking up the NS records of parent zones as part of looking up DS records, it was possible for named to trigger an assertion failure if serve-stale was enabled. This has been fixed. (CVE-2024-4076, bsc#1228258)

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:

  • openSUSE Leap 15.5
    zypper in -t patch SUSE-2024-2862=1 openSUSE-SLE-15.5-2024-2862=1
  • SUSE Linux Enterprise Micro 5.5
    zypper in -t patch SUSE-SLE-Micro-5.5-2024-2862=1
  • Basesystem Module 15-SP5
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP5-2024-2862=1
  • Server Applications Module 15-SP5
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP5-2024-2862=1

Package List:

  • openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 i586)
    • bind-debuginfo-9.16.50-150500.8.21.1
    • bind-debugsource-9.16.50-150500.8.21.1
    • bind-utils-9.16.50-150500.8.21.1
    • bind-9.16.50-150500.8.21.1
    • bind-utils-debuginfo-9.16.50-150500.8.21.1
  • openSUSE Leap 15.5 (noarch)
    • bind-doc-9.16.50-150500.8.21.1
    • python3-bind-9.16.50-150500.8.21.1
  • SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
    • bind-utils-9.16.50-150500.8.21.1
    • bind-utils-debuginfo-9.16.50-150500.8.21.1
  • SUSE Linux Enterprise Micro 5.5 (noarch)
    • python3-bind-9.16.50-150500.8.21.1
  • SUSE Linux Enterprise Micro 5.5 (x86_64)
    • bind-debugsource-9.16.50-150500.8.21.1
    • bind-debuginfo-9.16.50-150500.8.21.1
  • Basesystem Module 15-SP5 (aarch64 ppc64le s390x x86_64)
    • bind-debugsource-9.16.50-150500.8.21.1
    • bind-utils-9.16.50-150500.8.21.1
    • bind-utils-debuginfo-9.16.50-150500.8.21.1
    • bind-debuginfo-9.16.50-150500.8.21.1
  • Basesystem Module 15-SP5 (noarch)
    • python3-bind-9.16.50-150500.8.21.1
  • Server Applications Module 15-SP5 (aarch64 ppc64le s390x x86_64)
    • bind-debugsource-9.16.50-150500.8.21.1
    • bind-9.16.50-150500.8.21.1
    • bind-debuginfo-9.16.50-150500.8.21.1
  • Server Applications Module 15-SP5 (noarch)
    • bind-doc-9.16.50-150500.8.21.1

References: