CVE-2020-24336
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductContiki-ng
PublishedDec 11, 2020
First seenDec 11, 2020
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| contiki-ng contiki-ng | v ≤ 4.5 | — |
| contiki-os contiki | v ≤ 3.0 | — |
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