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CVE-2023-5679

25
FAUCET Score

CVE-2023-5679 describes an assertion failure in BIND 9's named daemon, leading to a crash during recursive resolution when both DNS64 and serve-stale features are enabled. This vulnerability impacts various versions of BIND 9, including those used in Fedora and NetApp products. With a CVSS score of 7.5 (High), it presents a network-exploitable denial-of-service risk with low attack complexity. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
38CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
39CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
>= 9.16.12, <= 9.16.45CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*
>= 9.18.0, <= 9.18.21CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.24%
Probability of exploitation in next 30 days
EPSS Percentile
66.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0124 is in the 45th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (24)

microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 9.16.48-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 9.16.48-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 9.19.21-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 9.19.21-1
microsoftpatch availablevia msrc
Product: 20093-17086Fixed in: 9.16.48-1
microsoftpatch availablevia msrc
Product: 18169-17084Fixed in: 9.19.21-1
microsoftpatch availablevia msrc
Product: 17073-17084Fixed in: 9.19.21-1
microsoftpatch availablevia msrc
Product: cbl2 bind 9.16.48-1 on CBL Mariner 2.0Fixed in: 9.16.48-1
microsoftpatch availablevia msrc
Product: azl3 bind 9.19.21-1 on Azure Linux 3.0Fixed in: 9.19.21-1
microsoftpatch availablevia msrc
Product: azl3 bind 9.16.44-2 on Azure Linux 3.0Fixed in: 9.19.21-1
nessuspatch availablevia llm_extracted
Fixed in: 9.18.22-S1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: bind-32:9.16.23-1.el9_0.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: bind-dyndb-ldap-0:11.9-7.el9_0.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.2 Extended Update SupportFixed in: bind-32:9.16.23-11.el9_2.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.2 Extended Update SupportFixed in: bind-dyndb-ldap-0:11.9-8.el9_2.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: bind-dyndb-ldap-0:11.9-9.el9_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: bind-dyndb-ldap-0:11.9-8.el9_3.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: bind-32:9.16.23-18.el9_4.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: bind9.16-32:9.16.23-0.16.el8_9.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: bind9.16-32:9.16.23-0.7.el8_6.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: bind9.16-32:9.16.23-0.14.el8_8.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: bind-32:9.16.23-14.el9_3.4
View patch
alistgovendor investigatingvia llm_extracted
View patch
consensysvendor investigatingvia llm_extracted
View patch

Vendor Advisories (6)

microsoft2024-Dec/CVE-2023-5679

CVE-2023-5679

Dec 10, 2024
microsoft2024-Feb/CVE-2023-5679Important

Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolution

Feb 13, 2024
redhatCVE-2023-5679Important

bind9: Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolution

Feb 13, 2024
nessusllm-nessus-665d48a8ff245da8
alistgollm-alistgo-b457d123a0e759b8

Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolution

consensysllm-consensys-cd44ba141b66cce8

References

kb.isc.org / docs/cve-2023-5679
Vendor Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20240426-0002
Third Party Advisory
openwall.com / lists/oss-security/2024/02/13/1
Mailing ListThird Party Advisory