# CVE-2019-20925: mongodb: An unauthenticated client can trigger denial of service by issuing specially crafted wire protocol messages, which ca...

CVE-2019-20925 is fixed in 4 products on 1 platform, first by mongodb 1:3.6.3-0ubuntu1.4, released November 24, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-20925
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0168
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 24, 2020

## Description

An unauthenticated client can trigger denial of service by issuing specially crafted wire protocol messages, which cause the message decompressor to incorrectly allocate memory. This issue affects MongoDB Server v4.2 versions prior to 4.2.1; MongoDB Server v4.0 versions prior to 4.0.13; MongoDB Server v3.6 versions prior to 3.6.15 and MongoDB Server v3.4 versions prior to 3.4.24.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | mongodb Ubuntu 18.04.6 LTS (bionic) | 1:3.6.3-0ubuntu1.4 | [mongodb 1:3.6.3-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mongodb-1-3.6.3-0ubuntu1.4.md) | Nov 24, 2020 |
| Linux | mongodb Ubuntu 20.04 LTS (focal) | 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.3 | [mongodb 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mongodb-1-3.6.9-really3.6.8-90-g8e540c0b6d-0ubuntu5.3.md) | Nov 24, 2020 |
| Linux | mongodb-clients Ubuntu 18.04.6 LTS (bionic) | 1:3.6.3-0ubuntu1.4 | [mongodb-clients 1:3.6.3-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mongodb-clients-1-3.6.3-0ubuntu1.4.md) | Nov 24, 2020 |
| Linux | mongodb-clients Ubuntu 20.04 LTS (focal) | 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.3 | [mongodb-clients 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mongodb-clients-1-3.6.9-really3.6.8-90-g8e540c0b6d-0ubuntu5.3.md) | Nov 24, 2020 |
| Linux | mongodb-server Ubuntu 18.04.6 LTS (bionic) | 1:3.6.3-0ubuntu1.4 | [mongodb-server 1:3.6.3-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mongodb-server-1-3.6.3-0ubuntu1.4.md) | Nov 24, 2020 |
| Linux | mongodb-server Ubuntu 20.04 LTS (focal) | 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.3 | [mongodb-server 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mongodb-server-1-3.6.9-really3.6.8-90-g8e540c0b6d-0ubuntu5.3.md) | Nov 24, 2020 |
| Linux | mongodb-server-core Ubuntu 18.04.6 LTS (bionic) | 1:3.6.3-0ubuntu1.4 | [mongodb-server-core 1:3.6.3-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mongodb-server-core-1-3.6.3-0ubuntu1.4.md) | Nov 24, 2020 |
| Linux | mongodb-server-core Ubuntu 20.04 LTS (focal) | 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.3 | [mongodb-server-core 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mongodb-server-core-1-3.6.9-really3.6.8-90-g8e540c0b6d-0ubuntu5.3.md) | Nov 24, 2020 |

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