// For flags

CVE-2023-5679

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

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

Una mala interacción entre DNS64 y el servidor obsoleto puede causar que "named" falle con una falla de aserción durante la resolución recursiva, cuando ambas funciones están habilitadas. Este problema afecta a las versiones de BIND 9, 9.16.12 a 9.16.45, 9.18.0 a 9.18.21, 9.19.0 a 9.19.19, 9.16.12-S1 a 9.16.45-S1 y 9.18.11-S1 a 9.18. .21-S1.

A flaw was found in the bind package. This issue may allow an attacker to query in a DNS64 enabled resolver node with a domain name triggering a server-stale data, triggering a code assertion, and resulting in a crash of `named` processes. This can allow a remote unauthenticated user to cause a Denial Of Service in the DNS server.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-10-20 CVE Reserved
  • 2024-02-13 CVE Published
  • 2024-04-27 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-617: Reachable Assertion
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
ISC
Search vendor "ISC"
BIND 9
Search vendor "ISC" for product "BIND 9"
>= 9.16.12 <= 9.16.45
Search vendor "ISC" for product "BIND 9" and version " >= 9.16.12 <= 9.16.45"
en
Affected
ISC
Search vendor "ISC"
BIND 9
Search vendor "ISC" for product "BIND 9"
>= 9.18.0 <= 9.18.21
Search vendor "ISC" for product "BIND 9" and version " >= 9.18.0 <= 9.18.21"
en
Affected
ISC
Search vendor "ISC"
BIND 9
Search vendor "ISC" for product "BIND 9"
>= 9.19.0 <= 9.19.19
Search vendor "ISC" for product "BIND 9" and version " >= 9.19.0 <= 9.19.19"
en
Affected