# CVE-2020-6077: libmicrodns0: An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0...

CVE-2020-6077 is fixed in libmicrodns0 on 1 platform by libmicrodns0 0.0.8-1ubuntu0.1~esm1 (version 0.0.8-1ubuntu0.1~esm1), released March 24, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-6077
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0250
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 24, 2020

## Description

An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages, the implementation does not properly keep track of the available data in the message, possibly leading to an out-of-bounds read that would result in a denial of service. An attacker can send an mDNS message to trigger this vulnerability.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libmicrodns0 Ubuntu 18.04.6 LTS (bionic) | 0.0.8-1ubuntu0.1~esm1 | [libmicrodns0 0.0.8-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmicrodns0-0.0.8-1ubuntu0.1-esm1.md) | Mar 24, 2020 |

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