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CVE-2020-24336

nvd nist
Published: Dec 11, 2020Modified: Nov 21, 2024

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9.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 3.9 / Impact: 5.9
Source: NVD

Description

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.

Affected (2)

Contiki Ng
1 product
Contiki Ng
Contiki Os
1 product
Contiki
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Contiki Ng
Up to 4.5
Contiki
Up to 3.0

Related CWEs

CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (4)

Source: cve@mitre.org
Third Party AdvisoryUS Government Resource
Source: cve@mitre.org
Third Party AdvisoryUS Government Resource
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryUS Government Resource
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryUS Government Resource

Timeline

No history available yet.