CVE-2023-5680: bind — Fix

Description

If a resolver cache has a very large number of ECS records stored for the same name, the process of cleaning the cache database node for this name can significantly impair query performance. This issue affects BIND 9 versions 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.

Is your site exposed to CVE-2023-5680?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected Products

Vendor	Product	Versions
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
isc	bind	All
netapp	active_iq_unified_manager	All

References

Advisories & Patches

https://kb.isc.org/docs/cve-2023-5680 https://kb.isc.org/docs/cve-2023-5680

Other References

https://security.netapp.com/advisory/ntap-20240503-0005/ https://security.netapp.com/advisory/ntap-20240503-0005/

Frequently Asked Questions

What is CVE-2023-5680? +

If a resolver cache has a very large number of ECS records stored for the same name, the process of cleaning the cache database node for this name can significantly impair query performance. This issue affects BIND 9 versions 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2023-5680? +

CVE-2023-5680 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-5680? +

CVE-2023-5680 affects products from isc, netapp, specifically: active_iq_unified_manager, bind. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-5680? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2024-28872 8.9

The TLS certificate validation code is flawed. An attacker can obtain a TLS certificate from the Stork server and use …

CVE-2026-5947 7.5

Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS …

CVE-2023-4408 7.5

The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause …

CVE-2023-5517 7.5

A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when: - `nxdomain-redirect <domain>;` is …

CVE-2023-5679 7.5

A bad interaction between DNS64 and serve-stale may cause `named` to crash with an assertion failure during recursive resolution, when …

CVE-2023-6516 7.5

To keep its cache database efficient, `named` running as a recursive resolver occasionally attempts to clean up the database. It …

CVE-2023-5680