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.
References (2)
Core 2
Core References
Third Party Advisory, US Government Resource x_refsource_misc
https://www.kb.cert.org/vuls/id/815128
Third Party Advisory, US Government Resource x_refsource_misc
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
Scores
CVSS v3
8.2
EPSS
0.0064
EPSS Percentile
70.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Details
CWE
CWE-125
Status
published
Products (1)
uip_project/uip
< 1.0
Published
Dec 11, 2020
Tracked Since
Feb 18, 2026