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CVE-2023-34100 Detail

Description

Contiki-NG is an open-source, cross-platform operating system for IoT devices. When reading the TCP MSS option value from an incoming packet, the Contiki-NG OS does not verify that certain buffer indices to read from are within the bounds of the IPv6 packet buffer, uip_buf. In particular, there is a 2-byte buffer read in the module os/net/ipv6/uip6.c. The buffer is indexed using 'UIP_IPTCPH_LEN + 2 + c' and 'UIP_IPTCPH_LEN + 3 + c', but the uip_buf buffer may not have enough data, resulting in a 2-byte read out of bounds. The problem has been patched in the "develop" branch of Contiki-NG, and is expected to be included in release 4.9. Users are advised to watch for the 4.9 release and to upgrade when it becomes available. There are no workarounds for this vulnerability aside from manually patching with the diff in commit `cde4e9839`.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/contiki-ng/contiki-ng/pull/2434/commits/cde4e98398a2f5b994972c8459342af3ba93b98e Patch 
https://github.com/contiki-ng/contiki-ng/pull/2434/commits/cde4e98398a2f5b994972c8459342af3ba93b98e Patch 
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-3v7c-jq9x-cmph Third Party Advisory 
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-3v7c-jq9x-cmph Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-125 Out-of-bounds Read GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-34100
NVD Published Date:
06/09/2023
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.