// For flags

CVE-2023-6378

Logback "receiver" DOS vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

Una vulnerabilidad de serialización en el componente receptor de inicio de sesión de la versión 1.4.11 permite a un atacante montar un ataque de Denegación de Servicio mediante el envío de datos envenenados.

A flaw was found in the logback package, where it is vulnerable to a denial of service caused by a serialization flaw in the receiver component. By sending specially crafted poisoned data, a remote attacker can cause a denial of service condition.

It was discovered that logback could read malicious configuration files from LDAP servers. An attacker with the required permissions could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. It was discovered that logback contained a serialization vulnerability. An attacker could possibly use this issue to cause a denial of service.

*Credits: Yakov Shafranovich, Amazon Web Services
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-11-29 CVE Reserved
  • 2023-11-29 CVE Published
  • 2024-11-29 CVE Updated
  • 2025-07-11 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-499: Serializable Class Containing Sensitive Data
  • CWE-502: Deserialization of Untrusted Data
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Qos
Search vendor "Qos"
 Logback
Search vendor "Qos" for product "Logback"
 >= 1.2.0 < 1.2.13
Search vendor "Qos" for product "Logback" and version " >= 1.2.0 < 1.2.13"
-
Affected
Qos
Search vendor "Qos"
 Logback
Search vendor "Qos" for product "Logback"
 >= 1.3.0 < 1.3.12
Search vendor "Qos" for product "Logback" and version " >= 1.3.0 < 1.3.12"
-
Affected
Qos
Search vendor "Qos"
 Logback
Search vendor "Qos" for product "Logback"
 >= 1.4.0 < 1.4.12
Search vendor "Qos" for product "Logback" and version " >= 1.4.0 < 1.4.12"
-
Affected