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.
Metrics
Affected Vendors & Products
References
History
No history.

Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2024-08-03T09:52:00.496Z
Reserved: 2022-07-15T00:00:00
Link: CVE-2022-36053

No data.

Status : Modified
Published: 2022-09-01T12:15:10.313
Modified: 2024-11-21T07:12:16.510
Link: CVE-2022-36053

No data.