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 2020-03-24 21:15:14
Updated 2024-01-21 01:32:59
Source Talos
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionDenial of service

Exploit prediction scoring system (EPSS) score for CVE-2020-6078

Probability of exploitation activity in the next 30 days: 0.35%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 69 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2020-6078

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
5.0
MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
NIST
7.5
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
NIST
7.5
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
Talos

CWE ids for CVE-2020-6078

  • The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-6078

Products affected by CVE-2020-6078

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