CVE-2023-5679

Name: CVE-2023-5679
Creator: NVD / NIST
Published: 2024-02-13T14:15:45.677+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.23%

Last modified Jun 17, 2026

CVE-2023-5679 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A bad interaction between DNS64 and serve-stale may cause `named` to crash with an assertion failure during recursive resolution, when both of these features are enabled. This issue affects BIND 9 versions 9.16.12 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.12-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

A bad interaction between DNS64 and serve-stale may cause `named` to crash with an assertion failure during recursive resolution, when both of these features are enabled. This issue affects BIND 9 versions 9.16.12 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.12-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.23%

65.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-617

Affected Software

Vendor	Product	Versions	Update
Netapp	Active Iq Unified Manager	All versions	—
Fedoraproject	Fedora	38	—
Fedoraproject	Fedora	39	—
Isc	Bind	>= 9.16.12, <= 9.16.45	—
Isc	Bind	>= 9.18.0, <= 9.18.21	—
Isc	Bind	>= 9.19.0, <= 9.19.19	—
Isc	Bind	9.16.12	S1
Isc	Bind	9.16.13	S1
Isc	Bind	9.16.14	S1
Isc	Bind	9.16.21	S1
Isc	Bind	9.16.32	S1
Isc	Bind	9.16.36	S1
Isc	Bind	9.16.43	S1
Isc	Bind	9.16.45	S1
Isc	Bind	9.18.11	S1
Isc	Bind	9.18.18	S1
Isc	Bind	9.18.21	S1

References

http://www.openwall.com/lists/oss-security/2024/02/13/1Mailing List, Third Party Advisory
https://kb.isc.org/docs/cve-2023-5679Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/Mailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20240426-0002/Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/02/13/1Mailing List, Third Party Advisory
https://kb.isc.org/docs/cve-2023-5679Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/Mailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20240426-0002/Third Party Advisory

Timeline

Published: Feb 13, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5679?

How severe is CVE-2023-5679?

CVE-2023-5679 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5679?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-5679?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST