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Fencer Vulns
high 7.1

CVE-2023-6378 json

Logback "receiver" DOS vulnerability

published 2023-11-29 2 y ago modified 2026-09-10 1 mo ago also GHSA-vmq6-5m68-f53m , EUVD-2023-3046

cvss
7.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven ch.qos.logback:logback-classic 1.2.13, 1.3.12, 1.4.12
  • maven ch.qos.logback:logback-core 1.2.13, 1.3.12, 1.4.12
  • qos logback 1.2.13, 1.3.12, 1.4.12
  • logback Debian 14, Debian 13 1:1.2.11-5

debian advisories DEBIAN-CVE-2023-6378

  • logback Ubuntu Pro 16.04 LTS 1:1.1.3-2ubuntu0.1~esm1
  • logback Ubuntu Pro 18.04 LTS 1:1.2.3-2ubuntu1~18.04.1+esm1
  • logback Ubuntu Pro 20.04 LTS 1:1.2.3-5ubuntu0.1~esm1
  • logback Ubuntu Pro 22.04 LTS 1:1.2.10-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2023-6378

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • logback openSUSE Tumbleweed 1.2.13-1.1

opensuse advisories openSUSE-SU-2025:15597-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-6378 updated cvss 7.5

logback: serialization vulnerability in logback receiver

  • Red Hat Migration Toolkit for Applications 6 logback
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Migration Toolkit for Applications 7 logback
    affected: workaround, no fix available
  • Red Hat OpenShift Serverless logback logback Red Hat build of Apache Camel for Spring Boot 3 logback logback Red Hat build of Debezium 2 logback logback
    affected: workaround, no fix planned “Will not fix”
  • Red Hat build of OptaPlanner 8 logback logback
    affected: workaround, no fix available
  • Red Hat Data Grid 8 logback logback Red Hat Decision Manager 7 logback logback Red Hat Integration Camel K 1 logback logback Red Hat JBoss Data Grid 7 logback logback
    affected: workaround, no fix planned “Will not fix”
  • Red Hat JBoss Enterprise Application Platform 6 logback logback, org.keycloak-keycloak-parent org.keycloak-keycloak-parent
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat JBoss Enterprise Application Platform Expansion Pack logback logback Red Hat Process Automation 7 logback logback Red Hat Single Sign-On 7 logback logback
    affected: workaround, no fix planned “Will not fix”
  • Red Hat streams for Apache Kafka logback logback
    affected: workaround, no fix available
show 5 more
  • Red Hat AMQ Broker 7
    fixed: vendor fix RHSA-2024:2945
  • Red Hat Fuse 7.13.0
    fixed: vendor fix RHSA-2024:3354
  • Red Hat OpenShift Dev Spaces 3 devspaces/server-rhel8 3.15-3
    fixed: vendor fix RHSA-2024:4631
  • Red Hat RHINT Camel-Springboot 4.0.3
    fixed: vendor fix RHSA-2024:0793
  • Red Hat A-MQ Clients 2 logback logback Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/elasticsearch6-rhel8 Red Hat Migration Toolkit for Runtimes logback Red Hat Build of Keycloak logback logback Red Hat build of Quarkus logback-core Red Hat JBoss Enterprise Application Platform 7 logback logback
    +4 more products
    Red Hat JBoss Enterprise Application Platform 8 logback logback Red Hat JBoss Web Server 6 logback logback Red Hat OpenShift Dev Spaces 3 devspaces/udi-rhel8 3.15-5, devspaces/code-rhel8 3.15-4, devspaces/idea-rhel8 3.15-5, devspaces/traefik-rhel8 3.15-2, devspaces/dashboard-rhel8 3.15-6, devspaces/configbump-rhel8 3.15-2, +6 more Red Hat support for Spring Boot logback logback
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-25-261-04 updated cvss 7.5

Multiple Open-Source Software Vulnerabilities in Hitachi Energy Asset Suite Product

  • Hitachi Energy Asset Suite <= 9.6.4.5
    affected: fixed in 9.7, mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven ch.qos.logback:logback-classic
>=1.3.0, <1.3.12
>=1.4.0, <1.4.12
<1.2.13
1.3.12
1.4.12
1.2.13
maven ch.qos.logback:logback-core
>=1.3.0, <1.3.12
>=1.4.0, <1.4.12
<1.2.13
1.3.12
1.4.12
1.2.13

Affected products

  • QOS.CH Sarl logback

Classification

Weakness
  • CWE-502 Deserialization of Untrusted Data

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.