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No exploitation reportedFix available

CVE-2023-6378

No exploitation reported by the sources we read.

  • Published2023-11-29
  • Fixed in1.4.12 · 1.3.12 · 1.2.13
  • WeaknessCWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2023-11-2912:15CVE publishedNVD

Versions per branch

NVD · OSV
Qos logback
BranchAffectedFixed in
1.4≥ 1.4.0, < 1.4.121.4.12
1.3≥ 1.3.0, < 1.3.121.3.12
1.2≥ 1.2.0, < 1.2.131.2.13
1.2< 1.2.131.2.13

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As NCSC.ch, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-12-05

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • cassandra-4.0MinimOSall versions · fixed in 0and 11 other packages
  • cassandra-5.0Wolfiall versions · fixed in 0and 6 other packages
  • cassandra-5.0Wolfiall versions · fixed in 5.0.6-r3
  • cassandra-5.0Chainguardall versions · fixed in 0and 15 other packages
  • cassandra-5.0Chainguardall versions · fixed in 5.0.6-r3
  • cassandra-fipsCleanStartall versions · fixed in 4.0.19-r3
  • cassandra-fipsCleanStartall versions · fixed in 4.1.10-r2
  • ch.qos.logback:logback-classicRed Hat Lightwell:Mavenall versions · fixed in 1.2.12.rhlw-00005

48 more package ranges on OSV.dev

Vendor advisories

  • CVE-2023-6378 Red Hat Product Security6 products fixed · 16 known affected

    logback: serialization vulnerability in logback receiver

    logback.src as a component of Migration Toolkit for Applications 6 · logback.src as a component of Migration Toolkit for Applications 7 · logback as a component of OpenShift Serverless · +13 more

  • RHSA-2024:4631 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.15.0 release

  • RHSA-2024:3354 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Fuse 7.13.0 release and security update

  • RHSA-2024:2945 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat AMQ Broker 7.12.0 release and security update

Full record on NVD

Fix

  1. Update Qos logback to 1.4.12 · 1.3.12 · 1.2.13
  2. Vendor fix Red Hat Product Security RHSA-2024:4631 · 3 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  3. Vendor fix Red Hat Product Security RHSA-2024:2945 · 1 productBefore applying the update, back up your existing installation, including all applications, configuration files, databases and database settings. The References section of this erratum contains a download link (you must log in to download the update).
  4. Workaround from the vendor Red Hat Product Security RHSA-2024:4631 · 37 productsMitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
  5. No fix available, says the vendor Red Hat Product Security CVE-2023-6378 · 3 productsAffected
  6. No fix planned, says the vendor Red Hat Product Security CVE-2023-6378 · 2 productsOut of support scope
  7. No fix planned, says the vendor Red Hat Product Security CVE-2023-6378 · 11 productsWill not fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2024-10-11
  • CNACVSS 3.17.1known since 2026-10-23
  • NVDCVSS 3.17.5read 2026-10-23
  • NVDweakness (CWE)CWE-502read 2026-10-23
  • FIRST EPSSEPSS score0.9 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryHIGH2023-11-29

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2023-11-29
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-vmq6-5m68-f53m

Frequently asked questions

What is CVE-2023-6378?

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.

Is CVE-2023-6378 actively exploited?

Active exploitation of CVE-2023-6378 has not been confirmed. Its EPSS score was 0.9% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-6378?

CVE-2023-6378 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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