CVE-2024-41126: high-severity vulnerability in contiki-ng
Out-of-bounds read when decoding SNMP messages in Contiki-NG
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.4epss 0.3%
Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte can be triggered when sending a packet to a device running the Contiki-NG operating system with SNMP enabled. The SNMP module is disabled in the default Contiki-NG configuration. The vulnerability exists in the os/net/app-layer/snmp/snmp-message.c module, where the snmp_message_decode function fails to check the boundary of the message buffer when reading a byte from it immediately after decoding an object identifier (OID). The problem has been patched in Contiki-NG pull request 2937. It will be included in the next release of Contiki-NG. Users are advised to either apply the patch manually or to wait for the next release. A workaround is to disable the SNMP module in the Contiki-NG build configuration.
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
contiki-ng · contiki-ngRelated CVEs — contiki-ng
In the same product, most dangerous first.
CVE-2022-35927HIGHUnverified DIO prefix info lengths in RPL-Classic in Contiki-NGEPSS 2.2%CVE-2021-32771HIGHBuffer overflow in contiki-ngEPSS 1.4%CVE-2022-35926MEDIUMOut-of-bounds read in IPv6 neighbor solicitation in Contiki-NGEPSS 1.3%CVE-2021-21410HIGHOut-of-bounds read in the 6LoWPAN implementationEPSS 1.2%CVE-2021-21257HIGHOut-of-bounds write in RPL-Classic and RPL-LiteEPSS 1.1%CVE-2021-21280HIGHOut-of-bounds write when processing 6LoWPAN extension headersEPSS 1.1%