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logback serialization vulnerability

High severity GitHub Reviewed Published Nov 29, 2023 to the GitHub Advisory Database • Updated Dec 5, 2023

Package

maven ch.qos.logback:logback-classic (Maven)

Affected versions

>= 1.4.0, < 1.4.12
>= 1.3.0, < 1.3.12
< 1.2.13

Patched versions

1.4.12
1.3.12
1.2.13
maven ch.qos.logback:logback-core (Maven)
>= 1.4.0, < 1.4.12
>= 1.3.0, < 1.3.12
< 1.2.13
1.4.12
1.3.12
1.2.13

Description

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

References

Published by the National Vulnerability Database Nov 29, 2023
Published to the GitHub Advisory Database Nov 29, 2023
Reviewed Nov 29, 2023
Last updated Dec 5, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS score

0.046%
(18th percentile)

Weaknesses

CVE ID

CVE-2023-6378

GHSA ID

GHSA-vmq6-5m68-f53m

Source code

Credits

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