Vulnerability Database

319,561

Total vulnerabilities in the database

CVE-2020-6078

An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdns_recv, the return value of the mdns_read_header function is not checked, leading to an uninitialized variable usage that eventually results in a null pointer dereference, leading to service crash. An attacker can send a series of mDNS messages to trigger this vulnerability.

  • Published: Mar 24, 2020
  • Updated: Nov 9, 2025
  • CVE: CVE-2020-6078
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P

CWEs:

Software From Fixed in
videolabs / libmicrodns 0.1.0 0.1.0.x
debian / debian_linux 9.0 9.0.x
debian / debian_linux 10.0 10.0.x