# CVE-2023-6378: logback: A serialization vulnerability in logback receiver component part of  logback version 1.4.11 allows an attacker to mou...

CVE-2023-6378 is fixed in 2 products on 1 platform, first by liblogback-java 1:1.2.3-2ubuntu1~18.04.1+esm1, released November 29, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-6378
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0090
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 29, 2023

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | liblogback-java Ubuntu 18.04.6 LTS (bionic) | 1:1.2.3-2ubuntu1~18.04.1+esm1 | [liblogback-java 1:1.2.3-2ubuntu1~18.04.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-liblogback-java-1-1.2.3-2ubuntu1-18.04.1-esm1.md) | Nov 29, 2023 |
| Linux | liblogback-java Ubuntu 20.04 LTS (focal) | 1:1.2.3-5ubuntu0.1~esm1 | [liblogback-java 1:1.2.3-5ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-liblogback-java-1-1.2.3-5ubuntu0.1-esm1.md) | Nov 29, 2023 |
| Linux | liblogback-java Ubuntu 22.04.1 LTS (jammy) | 1:1.2.10-1ubuntu0.1~esm1 | [liblogback-java 1:1.2.10-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-liblogback-java-1-1.2.10-1ubuntu0.1-esm1.md) | Nov 29, 2023 |
| Linux | logback Debian 13.5 (trixie) | 1:1.2.11-5 | [DEBIAN-CVE-2023-6378](https://patchblox.com/security/data/fix/linux/debian-cve-2023-6378.md) | Nov 29, 2023 |
| Linux | logback Debian 14 | 1:1.2.11-5 | [DEBIAN-CVE-2023-6378](https://patchblox.com/security/data/fix/linux/debian-cve-2023-6378.md) | Nov 29, 2023 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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