CVE-2021-28362
Last modified
CVE-2021-28362 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in Contiki through 3.0. When sending an ICMPv6 error message because of invalid extension header options in an incoming IPv6 packet, there is an attempt to remove the RPL extension headers. EPSS estimates a 1.31% chance of exploitation in the next 30 days.
Description
An issue was discovered in Contiki through 3.0. When sending an ICMPv6 error message because of invalid extension header options in an incoming IPv6 packet, there is an attempt to remove the RPL extension headers. Because the packet length and the extension header length are unchecked (with respect to the available data) at this stage, and these variables are susceptible to integer underflow, it is possible to construct an invalid extension header that will cause memory corruption issues and lead to a Denial-of-Service condition. This is related to rpl-ext-header.c.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Contiki-Os | Contiki | <= 3.0 |
References
- https://github.com/contiki-os/contiki/releasesRelease Notes, Third Party Advisory
- https://www.kb.cert.org/vuls/id/815128Third Party Advisory, US Government Resource
- https://github.com/contiki-os/contiki/releasesRelease Notes, Third Party Advisory
- https://www.kb.cert.org/vuls/id/815128Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
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