CVE-2023-34101: high-severity vulnerability in contiki-ng
Contiki-NG vulnerable to out-of-bounds read when processing ICMP DAO input
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.3epss 0.5%
Contiki-NG is an operating system for internet of things devices. In version 4.8 and prior, when processing ICMP DAO packets in the `dao_input_storing` function, the Contiki-NG OS does not verify that the packet buffer is big enough to contain the bytes it needs before accessing them. Up to 16 bytes can be read out of bounds in the `dao_input_storing` function. An attacker can truncate an ICMP packet so that it does not contain enough data, leading to an out-of-bounds read on these lines. The problem has been patched in the "develop" branch of Contiki-NG, and is expected to be included in release 4.9. As a workaround, one can apply the changes in Contiki-NG pull request #2435 to patch the system.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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%