CVE-2023-29451

Denial of service caused by a bug in the JSON parser

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Specially crafted string can cause a buffer overrun in the JSON parser library leading to a crash of the Zabbix Server or a Zabbix Proxy.

*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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-04-06 CVE Reserved
2023-07-13 CVE Published
2025-02-13 CVE Updated
2025-04-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-787: Out-of-bounds Write

CAPEC

CAPEC-469: HTTP DoS

References (2)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2023/08/msg00027.html

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.zabbix.com/browse/ZBX-22587	2023-08-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Zabbix Search vendor "Zabbix"		Zabbix Search vendor "Zabbix" for product "Zabbix"				<= 6.0.14 Search vendor "Zabbix" for product "Zabbix" and version " <= 6.0.14"		-		Affected
Zabbix Search vendor "Zabbix"		Zabbix Search vendor "Zabbix" for product "Zabbix"				>= 6.4.2 <= 6.4.4 Search vendor "Zabbix" for product "Zabbix" and version " >= 6.4.2 <= 6.4.4"		-		Affected
Zabbix Search vendor "Zabbix"		Zabbix Search vendor "Zabbix" for product "Zabbix"				6.4.0 Search vendor "Zabbix" for product "Zabbix" and version "6.4.0"		alpha1		Affected
Zabbix Search vendor "Zabbix"		Zabbix Search vendor "Zabbix" for product "Zabbix"				6.4.0 Search vendor "Zabbix" for product "Zabbix" and version "6.4.0"		beta1		Affected
Zabbix Search vendor "Zabbix"		Zabbix Search vendor "Zabbix" for product "Zabbix"				6.4.0 Search vendor "Zabbix" for product "Zabbix" and version "6.4.0"		beta2		Affected
Zabbix Search vendor "Zabbix"		Zabbix Search vendor "Zabbix" for product "Zabbix"				6.4.0 Search vendor "Zabbix" for product "Zabbix" and version "6.4.0"		beta3		Affected
Zabbix Search vendor "Zabbix"		Zabbix Search vendor "Zabbix" for product "Zabbix"				6.4.0 Search vendor "Zabbix" for product "Zabbix" and version "6.4.0"		beta4		Affected
Zabbix Search vendor "Zabbix"		Zabbix Search vendor "Zabbix" for product "Zabbix"				6.4.0 Search vendor "Zabbix" for product "Zabbix" and version "6.4.0"		beta5		Affected
Zabbix Search vendor "Zabbix"		Zabbix Search vendor "Zabbix" for product "Zabbix"				6.4.0 Search vendor "Zabbix" for product "Zabbix" and version "6.4.0"		beta6		Affected
Zabbix Search vendor "Zabbix"		Zabbix Search vendor "Zabbix" for product "Zabbix"				6.4.0 Search vendor "Zabbix" for product "Zabbix" and version "6.4.0"		rc2		Affected
Zabbix Search vendor "Zabbix"		Zabbix Search vendor "Zabbix" for product "Zabbix"				6.4.0 Search vendor "Zabbix" for product "Zabbix" and version "6.4.0"		rc3		Affected
Zabbix Search vendor "Zabbix"		Zabbix Search vendor "Zabbix" for product "Zabbix"				6.4.0 Search vendor "Zabbix" for product "Zabbix" and version "6.4.0"		rc4		Affected