CVE-2023-29451

Denial of service caused by a bug in the JSON parser

View on CVE.org

Published Jul 13, 2023 CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed

Description

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Zabbix

Zabbix

affected

Version	Status	Constraints
`6.0`	affected	≤ 6.0.14
`6.2`	affected	≤ 6.2.8
`6.4`	affected	≤ 6.4.0
`7.0.0alpha1`	affected	≤ 7.0.0alpha1

Configuration 1 [-]

OR	cpe:2.3:a:zabbix:zabbix::::::::
	cpe:2.3:a:zabbix:zabbix::::::::
	cpe:2.3:a:zabbix:zabbix:6.4.0:alpha1::::::
	cpe:2.3:a:zabbix:zabbix:6.4.0:beta1::::::
	cpe:2.3:a:zabbix:zabbix:6.4.0:beta2::::::
	cpe:2.3:a:zabbix:zabbix:6.4.0:beta3::::::
	cpe:2.3:a:zabbix:zabbix:6.4.0:beta4::::::
	cpe:2.3:a:zabbix:zabbix:6.4.0:beta5::::::
	cpe:2.3:a:zabbix:zabbix:6.4.0:beta6::::::
	cpe:2.3:a:zabbix:zabbix:6.4.0:rc2::::::
	cpe:2.3:a:zabbix:zabbix:6.4.0:rc3::::::
	cpe:2.3:a:zabbix:zabbix:6.4.0:rc4::::::

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
Debian DLA	DLA-3538-1	zabbix security update
EUVD	EUVD-2023-33020	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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.783% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://lists.debian.org/debian-lts-announce/2023/08/msg00027.html
https://support.zabbix.com/browse/ZBX-22587

History

Oct 22, 2024 5:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Zabbix Zabbix

Weaknesses

Sources

CVE record Updated: Feb 13, 2025, 4:49 PM

Status: PUBLISHED
Assigner: Zabbix
Published: Jul 13, 2023, 9:29 AM
Updated: Feb 13, 2025, 4:49 PM
Reserved: Apr 6, 2023, 6:04 PM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 2:07 PM

Updated: Aug 2, 2024, 2:07 PM

NVD Updated: Jun 17, 2026, 5:50 AM

Status: Modified
Published: Jul 13, 2023, 10:15 AM
Modified: Jun 17, 2026, 5:50 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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