PT-2018-14953 · Contiki · Contiki-Ng

Published 2018-11-21 · Updated 2019-05-12 · CVE-2018-19417

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Contiki-NG versions prior to 4.2

Description A issue in the MQTT server allows for Remote Code Execution via a stack-smashing attack. The parse publish vhdr() function uses memcpy to input data into a fixed-size buffer without a length check, potentially overwriting the function return address. This could provide access to all memory regions since the MQTT server is not separated from other servers and OS modules.

Recommendations For Contiki-NG versions prior to 4.2, update to version 4.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the MQTT server to minimize the risk of exploitation.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2018-19417

MGASA-2019-0168

Affected Products

Contiki-Ng

References · 7

• 🔥 https://github.com/contiki-ng/contiki-ng/issues/600 · Exploit
• https://osv.dev/vulnerability/MGASA-2019-0168 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-19417 · Security Note
• https://osv.dev/vulnerability/CVE-2018-19417 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2019-0168.html · Security Note
• https://bugs.mageia.org/show_bug.cgi?id=24765 · Note
• https://lists.opensuse.org/opensuse-updates/2019-04/msg00086.html · Note