What is CVE-2020-17439?

CVE-2020-17439 is a high-severity vulnerability in Contiki-os Contiki, classified under Improper Input Validation. CVSS score: 8.3/10. Published 2020-12-11.

How severe is CVE-2020-17439?

High severity. CVSS v3 base score is 8.3 out of 10.

Improper input validation in Contiki-os Contiki

CVE-2020-17439

An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that parses incoming DNS packets does not validate that the incoming DNS replies match outgoing DNS queries in newdata() in resolv.c. Also, arbitrary D…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.031 (86.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L.

Affected products

Contiki-os Contiki — versions 3.0
Uip_project Uip — versions 1.0
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

cve@mitre.org (US Government Resource, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (US Government Resource, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-17439?: CVE-2020-17439 is a high-severity vulnerability in Contiki-os Contiki, classified under Improper Input Validation. CVSS score: 8.3/10. Published 2020-12-11.
How severe is CVE-2020-17439?: High severity. CVSS v3 base score is 8.3 out of 10.