An issue was discovered in Contiki through 3.0 and Contiki-NG through 4.5. The code for parsing Type A domain name answers in ip64-dns64.c doesn't verify whether the address in the answer's length is sane. Therefore, when copying an address of an arbitrary length, a buffer overflow can occur. This bug can be exploited whenever NAT64 is enabled.
Advisories
Source ID Title
EUVD EUVD EUVD-2020-17070 An issue was discovered in Contiki through 3.0 and Contiki-NG through 4.5. The code for parsing Type A domain name answers in ip64-dns64.c doesn't verify whether the address in the answer's length is sane. Therefore, when copying an address of an arbitrary length, a buffer overflow can occur. This bug can be exploited whenever NAT64 is enabled.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T15:12:08.454Z

Reserved: 2020-08-13T00:00:00

Link: CVE-2020-24336

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-12-11T23:15:13.870

Modified: 2024-11-21T05:14:36.863

Link: CVE-2020-24336

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.