CVE Vulnerability

CVE-2022-35926

Contiki-NG is an open-source, cross-platform operating system for IoT devices. Because of insufficient validation of IPv6 neighbor discovery options in Contiki-NG, attackers can send neighbor solicitation packets that trigger an out-of-bounds read. The problem exists in the module os/net/ipv6/uip-nd6.c, where memory read operations from the main packet buffer, uip_buf, are not checked if they go out of bounds. In particular, this problem can occur when attempting to read the 2-byte option header and the Source Link-Layer Address Option (SLLAO). This attack requires ipv6 be enabled for the network. The problem has been patched in the develop branch of Contiki-NG. The upcoming 4.8 release of Contiki-NG will include the patch.Users unable to upgrade may apply the patch in Contiki-NG PR #1654.

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-4hpq-4f53-w386 Third Party Advisory
https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c Patch Third Party Advisory
https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8 Third Party Advisory
https://github.com/contiki-ng/contiki-ng/pull/1654 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*
Information

Published : 2022-08-04 09:15

Updated : 2022-08-11 02:14

NVD link : CVE-2022-35926

Mitre link : CVE-2022-35926

Products Affected
No products.
CWE
CWE-125

Out-of-bounds Read