PT-2021-9442 · Unknown · Contiki-Ng

Published 2021-10-19 · Updated 2021-10-22 · CVE-2020-12141

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Contiki-NG versions 4.4 and earlier

Description The issue is related to an out-of-bounds read in the SNMP stack, allowing an attacker to cause a denial of service and potentially disclose information. This can be achieved via crafted SNMP packets to the snmp ber decode string len buffer function in os/net/app-layer/snmp/snmp-ber.c.

Recommendations For Contiki-NG versions 4.4 and earlier, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2020-12141

Affected Products

Contiki-Ng

References · 6

• https://github.com/contiki-ng/contiki-ng/pull/1355 · Patch
• https://github.com/contiki-ng/contiki-ng/commit/12c824386ab60de757de5001974d73b32e19ad71#diff-32367fad664c6118fd5dda77cdf38eedc006cdd7544eca5bbeebe0b99653f8a0 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2020-12141 · Security Note
• https://osv.dev/vulnerability/CVE-2020-12141 · Vendor Advisory
• https://t.me/cibsecurity/30803 · Telegram Post
• https://twitter.com/ScepticCtf · Note