CVEvulnerability

CVE-2020-6078

7.5 HIGH Published 2020-03-24 Modified 2026-10-08 Official page ↗
Status
Modified
Published
2020-03-24
Last modified
2026-10-08
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-252

Description

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.

Affected configurations

• videolabs libmicrodns 0.1.0 • debian debian linux 9.0 • debian debian linux 10.0

Related

Weakness · CWE (1)

  • CWE-252 Unchecked Return Value weakness

Referenced by CWE · observed example (3)

  • CWE-252 Unchecked Return Value weakness
  • CWE-456 Missing Initialization of a Variable weakness
  • CWE-476 NULL Pointer Dereference weakness

References