// For flags

CVE-2024-4076

Assertion failure when serving both stale cache data and authoritative zone content

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

Client queries that trigger serving stale data and that also require lookups in local authoritative zone data may result in an assertion failure.
This issue affects BIND 9 versions 9.16.13 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.11.33-S1 through 9.11.37-S1, 9.16.13-S1 through 9.16.50-S1, and 9.18.11-S1 through 9.18.27-S1.

Las consultas de los clientes que desencadenan la entrega de datos obsoletos y que también requieren búsquedas en datos de la zona autorizada local pueden provocar un error de aserción. Este problema afecta a las versiones de BIND 9, 9.16.13 a 9.16.50, 9.18.0 a 9.18.27, 9.19.0 a 9.19.24, 9.11.33-S1 a 9.11.37-S1, 9.16.13-S1 a 9.16. 50-S1 y 9.18.11-S1 a 9.18.27-S1.

A flaw was found in the bind9 package, where a client query triggers stale data and also requires local lookups may trigger a assertion failure. This issue results in a denial of service of the bind server.

*Credits: ISC would like to thank Daniel Stränger for bringing this vulnerability to our attention.
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:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-04-23 CVE Reserved
  • 2024-07-23 CVE Published
  • 2024-08-01 CVE Updated
  • 2024-08-01 EPSS 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"
>= 9.16.13 <= 9.16.50
Search vendor "ISC" for product "BIND 9" and version " >= 9.16.13 <= 9.16.50"
en
Affected
ISC
Search vendor "ISC"
BIND 9
Search vendor "ISC" for product "BIND 9"
>= 9.18.0 <= 9.18.27
Search vendor "ISC" for product "BIND 9" and version " >= 9.18.0 <= 9.18.27"
en
Affected
ISC
Search vendor "ISC"
BIND 9
Search vendor "ISC" for product "BIND 9"
>= 9.19.0 <= 9.19.24
Search vendor "ISC" for product "BIND 9" and version " >= 9.19.0 <= 9.19.24"
en
Affected