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, <code>uip_buf</code>, 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.
Configurations

Configuration 1 (hide)

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

History

11 Aug 2022, 14:14

Type Values Removed Values Added
CPE cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5
References (MISC) https://github.com/contiki-ng/contiki-ng/pull/1654 - (MISC) https://github.com/contiki-ng/contiki-ng/pull/1654 - Patch, Third Party Advisory
References (CONFIRM) https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-4hpq-4f53-w386 - (CONFIRM) https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-4hpq-4f53-w386 - Third Party Advisory
References (MISC) https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8 - (MISC) https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8 - Third Party Advisory
References (MISC) https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c - (MISC) https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c - Patch, Third Party Advisory

04 Aug 2022, 21:15

Type Values Removed Values Added
New CVE

Information

Published : 2022-08-04 21:15

Updated : 2024-02-04 22:51


NVD link : CVE-2022-35926

Mitre link : CVE-2022-35926

CVE.ORG link : CVE-2022-35926


JSON object : View

Products Affected

contiki-ng

  • contiki-ng
CWE
CWE-125

Out-of-bounds Read