CVE-2020-24334

Published: Dec 11, 2020Modified: Jun 17, 2026

8.2

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Exploitability: 3.9 / Impact: 4.2

Source: NVD

Description

The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does not check whether the number of responses specified in the DNS packet header corresponds to the response data available in the DNS packet, leading to an out-of-bounds read and Denial-of-Service in resolv.c.

Affected (1)

Products: Uip Project: Uip

1 product

Configuration A

1 vulnerable · 2 platform

Vulnerable Software	Affected Versions
Uip Project Uip	Up to 1.0

Running on/with	Platform Versions
Contiki Ng Contiki Ng	All versions
Contiki Os Contiki	All versions

Related CWEs

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (4)

https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01

Source: cve@mitre.org

Third Party AdvisoryUS Government Resource

https://www.kb.cert.org/vuls/id/815128

Source: cve@mitre.org

Third Party AdvisoryUS Government Resource

https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party AdvisoryUS Government Resource

https://www.kb.cert.org/vuls/id/815128

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party AdvisoryUS Government Resource

Timeline

No history available yet.