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

*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.

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.

It was discovered that Bind incorrectly handled a flood of DNS messages over TCP. A remote attacker could possibly use this issue to cause Bind to become unstable, resulting in a denial of service. Toshifumi Sakaguchi discovered that Bind incorrectly handled having a very large number of RRs existing at the same time. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service.

*Credits: ISC would like to thank Daniel Stränger for bringing this vulnerability to our attention.

CVSS Scores

Internet Systems Consortium (ISC)v3.1 7.5
Tenablev2 7.8

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* 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
2025-02-13 CVE Updated
2025-06-04 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-617: Reachable Assertion

CAPEC

References (5)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2024/07/23/1
http://www.openwall.com/lists/oss-security/2024/07/31/2

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://kb.isc.org/docs/cve-2024-4076	2024-07-24
https://access.redhat.com/security/cve/CVE-2024-4076	2024-09-11
https://bugzilla.redhat.com/show_bug.cgi?id=2298904	2024-09-11

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