PT-2024-11025 · Unknown · Contiki-Ng

Jerrytesting + 1 · Published 2024-01-24 · Updated 2024-02-01 · CVE-2021-42147

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 tinyDTLS versions through master branch 53a0d97

Description A buffer over-read issue exists in the dtls sha256 update function, allowing remote attackers to cause a denial of service via crafted data packets. This issue affects Contiki-NG tinyDTLS, enabling attackers to disrupt service.

Recommendations For Contiki-NG tinyDTLS versions through master branch 53a0d97, as a temporary workaround, consider disabling the dtls sha256 update function until a patch is available. 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-2021-42147

Affected Products

Contiki-Ng

References · 5

• https://osv.dev/vulnerability/CVE-2021-42147 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-42147 · Security Note
• https://seclists.org/fulldisclosure/2024/Jan/20 · Note
• http://seclists.org/fulldisclosure/2024/Jan/20 · Note
• https://twitter.com/CVEnew/status/1750230116720930886 · Twitter Post