CVE-2023-6378: Logback "receiver" DOS vulnerability

Published Nov 29, 2023
·
Updated

A serialization vulnerability in logback receiver component part of logback version 1.4.11 allows an attacker to mount a Denial-Of-Service attack by sending poisoned data.

Other sources

A serialization vulnerability in logback receiver component part of logback allows an attacker to mount a Denial-Of-Service attack by sending poisoned data.

This is only exploitable if logback receiver component is deployed. See https://logback.qos.ch/manual/receivers.html

— GitHub

Affected Software

10 affected componentsFixes available
maven/ch.qos.logback:logback-classic<1.2.13
1.2.13
maven/ch.qos.logback:logback-core<1.2.13
1.2.13
maven/ch.qos.logback:logback-core>=1.3.0<1.3.12
1.3.12
maven/ch.qos.logback:logback-classic>=1.3.0<1.3.12
1.3.12
maven/ch.qos.logback:logback-core>=1.4.0<1.4.12
1.4.12
maven/ch.qos.logback:logback-classic>=1.4.0<1.4.12
1.4.12
qos logback>=1.2.0<1.2.13
qos logback>=1.3.0<1.3.12
qos logback>=1.4.0<1.4.12
IBM Edge Application Manager<=4.5

Remediation

Information

Only environments where logback receiver component is deployed may be vulnerable. In case a logback receiver is deployed, restricting connections to trustworthy clients or upgrading to logback version 1.4.12 or later will remedy the vulnerability.

Event History

Nov 29, 2023
CVE Published
via MITRE·12:02 PM
Data Sourced
via MITRE·12:02 PM
RemedyDescriptionSeverityWeakness
Advisory Published
via GitHub·12:30 PM
Nov 30, 2023
Data Sourced
via Red Hat·09:44 AM
DescriptionSeverityAffected Software
Aug 20, 2025
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2023-6378?

CVE-2023-6378 is a serialization vulnerability in the logback receiver component, allowing an attacker to mount a Denial-of-Service attack by sending poisoned data.

2

How severe is CVE-2023-6378?

CVE-2023-6378 has a severity level of 7.1, which is classified as high.

3

Which software versions are affected by CVE-2023-6378?

Logback versions 1.4.0 to 1.4.12 and versions 1.3.0 to 1.3.12 of logback-core and logback-classic are affected by CVE-2023-6378.

4

How can I fix CVE-2023-6378?

To fix CVE-2023-6378, upgrade to logback version 1.4.12 for logback-core and logback-classic.

5

Where can I find more information about CVE-2023-6378?

You can find more information about CVE-2023-6378 in the logback news, the NIST vulnerability database, and the logback GitHub commit.

Company

Resources

Contact

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