CVE-2020-24334 Information

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.

CVSS Vector

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

Reference

https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 https://www.kb.cert.org/vuls/id/815128

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

HIGH

Base Severity

8.2