Vulnerability · Published Dec 11, 2020 · Assigned by mitre
CVE-2020-24336
Critical 9.8
In plain English
A critical-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 59.1% (higher than 99.1% of all known vulnerabilities).
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)59.1%top 0.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 products (as reported)
References
- https://www.kb.cert.org/vuls/id/815128 x_refsource_MISC
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 x_refsource_MISC