CVE-2020-9493 - Vulnerability Details - OpenCVE

A deserialization flaw was found in Apache Chainsaw versions prior to 2.1.0 which could lead to malicious code execution.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00587.

Key SSVC decision points have not yet been added.

Vendors	Products
Apache	Chainsaw Log4j
Qos	Reload4j

Configuration 1 [-]

OR	cpe:2.3:a:apache:chainsaw::::::::
	cpe:2.3:a:apache:log4j::::::::

Configuration 2 [-]

cpe:2.3:a:qos:reload4j:*:*:*:*:*:*:*:*

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

Don't configure Chainsaw to read serialized log events. Use a different receiver, such as XMLSocketReceiver

References

Link	Providers
http://www.openwall.com/lists/oss-security/2021/06/16/1
http://www.openwall.com/lists/oss-security/2022/01/18/5
https://lists.apache.org/thread.html/r50d389c613ba6062a26aa57e163c09bfee4ff2d95d67331d75265b83%40%3Cannounce.apache.org%3E
https://www.openwall.com/lists/oss-security/2021/06/16/1

History

Wed, 16 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00348}`	epss `{'score': 0.00357}`

MITRE

Status: PUBLISHED

Assigner: apache

Published: 2021-06-16T07:30:11

Updated: 2024-08-04T10:34:37.927Z

Reserved: 2020-03-01T00:00:00

Link: CVE-2020-9493

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-06-16T08:15:06.577

Modified: 2024-11-21T05:40:46.017

Link: CVE-2020-9493

Redhat

No data.

OpenCVE Enrichment

No data.

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