SUSE-SU-2024:0574-1: Security update for bind

Q: Which deployments have additional exposure to crash conditions fixed by this update?

Deployments with nxdomain-redirect enabled may be exposed to the CVE-2023-5517 crash condition. Deployments that enable both DNS64 and serve-stale may be exposed to the CVE-2023-5679 crash condition.

Q: What types of DNS traffic can trigger the denial-of-service issues?

The addressed denial-of-service conditions involve DNS messages containing many DNSSEC signatures, NSEC3 closest-encloser proofs, or many different names. Continuous triggering of cache database maintenance can also cause excessive memory consumption.

Q: Which SUSE platforms and packages are covered by this update?

The update covers SUSE openSUSE Leap 15.5 on aarch64, ppc64le, s390x, x86_64, and i586. It includes bind, bind-utils, python3-bind, bind-doc, and associated debug and debuginfo packages.

Published Feb 21, 2024

Updated

This update for bind fixes the following issues: Update to release 9.16.48: CVE-2023-50387: Fixed a denial-of-service caused by DNS messages containing a lot of DNSSEC signatures (bsc#1219823). CVE-2023-50868: Fixed a denial-of-service caused by NSEC3 closest encloser proof (bsc#1219826). CVE-2023-4408: Fixed a denial-of-service caused by DNS messages with many different names (bsc#1219851). CVE-2023-5517: Fixed a possible crash when nxdomain-redirect was enabled (bsc#1219852). CVE-2023-5679: Fixed a possible crash when bad interaction between DNS64 and serve-stale, when both of these features are enabled (bsc#1219853). CVE-2023-6516: Fixed excessive memory consumption when continuously trigger the cache database maintenance (bsc#1219854).

Affected Software

22 affected componentsFixes available

All of the following

SUSE openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 i586)

Any of the following

suse/bind<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

suse/bind-debugsource<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

suse/bind-utils-debuginfo<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

suse/bind-utils<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

suse/bind-debuginfo<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

All of the following

SUSE openSUSE Leap 15.5 (noarch)

Any of the following

suse/python3-bind<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

suse/bind-doc<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

All of the following

SUSE Basesystem Module 15-SP5 (aarch64 ppc64le s390x x86_64)

Any of the following

suse/bind-debugsource<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

suse/bind-debuginfo<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

suse/bind-utils-debuginfo<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

suse/bind-utils<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

All of the following

SUSE Basesystem Module 15-SP5 (noarch)

suse/python3-bind<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

All of the following

SUSE Server Applications Module 15-SP5 (aarch64 ppc64le s390x x86_64)

Any of the following

suse/bind-debugsource<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

suse/bind-debuginfo<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

suse/bind<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

All of the following

SUSE Server Applications Module 15-SP5 (noarch)

suse/bind-doc<9.16.48-150500.8.16.1

9.16.48-150500.8.16.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade suse/bind to a version that resolves this vulnerability.
Fixed in 9.16.48-150500.8.16.1
Upgrade
Upgrade suse/bind-debugsource to a version that resolves this vulnerability.
Fixed in 9.16.48-150500.8.16.1
Upgrade
Upgrade suse/bind-utils-debuginfo to a version that resolves this vulnerability.
Fixed in 9.16.48-150500.8.16.1
Upgrade
Upgrade suse/bind-utils to a version that resolves this vulnerability.
Fixed in 9.16.48-150500.8.16.1
Upgrade
Upgrade suse/bind-debuginfo to a version that resolves this vulnerability.
Fixed in 9.16.48-150500.8.16.1
Upgrade
Upgrade suse/python3-bind to a version that resolves this vulnerability.
Fixed in 9.16.48-150500.8.16.1
Upgrade
Upgrade suse/bind-doc to a version that resolves this vulnerability.
Fixed in 9.16.48-150500.8.16.1
Upgrade
Upgrade bind to a version that resolves this vulnerability.
Fixed in 9.16.48

Event History

Feb 21, 2024

Advisory Published

via SUSE·12:30 PM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

Which deployments have additional exposure to crash conditions fixed by this update?

Deployments with nxdomain-redirect enabled may be exposed to the CVE-2023-5517 crash condition. Deployments that enable both DNS64 and serve-stale may be exposed to the CVE-2023-5679 crash condition.

What types of DNS traffic can trigger the denial-of-service issues?

The addressed denial-of-service conditions involve DNS messages containing many DNSSEC signatures, NSEC3 closest-encloser proofs, or many different names. Continuous triggering of cache database maintenance can also cause excessive memory consumption.

Which SUSE platforms and packages are covered by this update?

The update covers SUSE openSUSE Leap 15.5 on aarch64, ppc64le, s390x, x86_64, and i586. It includes bind, bind-utils, python3-bind, bind-doc, and associated debug and debuginfo packages.

SUSE-SU-2024:0574-1: Security update for bind

Affected Software

Remediation

Event History

Child vulnerabilities

Frequently Asked Questions

Which deployments have additional exposure to crash conditions fixed by this update?

What types of DNS traffic can trigger the denial-of-service issues?

Which SUSE platforms and packages are covered by this update?

Company

Resources

Contact

Frequently Asked Questions

Which deployments have additional exposure to crash conditions fixed by this update?

What types of DNS traffic can trigger the denial-of-service issues?

Which SUSE platforms and packages are covered by this update?