Vulnerability Description
Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. The low-power IPv6 network stack of Contiki-NG has a buffer module (os/net/ipv6/uipbuf.c) that processes IPv6 extension headers in incoming data packets. As part of this processing, the function uipbuf_get_next_header casts a pointer to a uip_ext_hdr structure into the packet buffer at different offsets where extension headers are expected to be found, and then reads from this structure. Because of a lack of bounds checking, the casting can be done so that the structure extends beyond the packet's end. Hence, with a carefully crafted packet, it is possible to cause the Contiki-NG system to read data outside the packet buffer. A patch that fixes the vulnerability is included in Contiki-NG 4.8.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Contiki-Ng | Contiki-Ng | < 4.8 |
Related Weaknesses (CWE)
References
- https://github.com/contiki-ng/contiki-ng/pull/1648Broken Link
- https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-2j9c-7754-w4cwThird Party Advisory
- https://github.com/contiki-ng/contiki-ng/pull/1648Broken Link
- https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-2j9c-7754-w4cwThird Party Advisory
FAQ
What is CVE-2022-36053?
CVE-2022-36053 is a vulnerability with a CVSS score of 5.9 (MEDIUM). Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. The low-power IPv6 network stack of Contiki-NG has a buffer module (os/net/ipv6/uipbuf.c) that processes ...
How severe is CVE-2022-36053?
CVE-2022-36053 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-36053?
Check the references section above for vendor advisories and patch information. Affected products include: Contiki-Ng Contiki-Ng.