Upstream information

CVE-2020-24334 at MITRE

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.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having critical severity.

CVSS v2 Scores
CVSS detail National Vulnerability Database
Base Score 6.4
Vector AV:N/AC:L/Au:N/C:N/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
CVSS detail National Vulnerability Database
Base Score 8.2
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact Low
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1179907 [NEW]

No SUSE Security Announcements cross referenced.

SUSE Timeline for this CVE

CVE page created: Thu Dec 10 17:28:55 2020
CVE page last modified: Mon Oct 6 19:26:34 2025