CVE-2022-35926

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Summary

CVECVE-2022-35926
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-04 21:15:00 UTC
Updated2022-08-11 14:14:00 UTC
DescriptionContiki-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.

Risk And Classification

Problem Types: CWE-125

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Contiki-ng Contiki-ng All All All All

References

ReferenceSourceLinkTags
uip-nd6: Check buffer space for ND6 option headers. by nvt · Pull Request #1654 · contiki-ng/contiki-ng · GitHub MISC github.com
Release Version 4.8 · contiki-ng/contiki-ng · GitHub MISC github.com
Out-of-bounds read in IPv6 neighbor solicitation · Advisory · contiki-ng/contiki-ng · GitHub CONFIRM github.com
uip-nd6: Check buffer space for ND6 option headers. by nvt · Pull Request #1654 · contiki-ng/contiki-ng · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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