PT-2023-21574 · Unknown · Contiki-Ng

Diff-Fusion + 2 · Published 2023-03-17 · Updated 2023-03-24 · CVE-2023-28116

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Contiki-NG versions 4.8 and prior

Description Contiki-NG is an open-source, cross-platform operating system for internet of things (IoT) devices. In the affected versions, an out-of-bounds write can occur in the BLE L2CAP module of the Contiki-NG operating system. The network stack of Contiki-NG uses a global buffer (packetbuf) for processing of packets, with the size of PACKETBUF SIZE. When using the BLE L2CAP module with the default configuration, the PACKETBUF SIZE value becomes larger than the actual size of the packetbuf. When large packets are processed by the L2CAP module, a buffer overflow can occur when copying the packet data to the packetbuf.

Recommendations For Contiki-NG versions 4.8 and prior, the problem can be worked around by applying the patch manually. As a temporary workaround, consider disabling the BLE L2CAP module until a patch is available. The vulnerability has been patched in the "develop" branch of Contiki-NG, and will be included in release 4.9.

Exploit

Fix

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-120

Related Identifiers

CVE-2023-28116

GHSA-M737-4VX6-PFQP

Affected Products

Contiki-Ng

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28116.json · Exploit
• https://github.com/contiki-ng/contiki-ng/pull/2398 · Patch
• https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqp · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-28116 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-28116 · Security Note
• https://t.me/cvenotify/46420 · Telegram Post
• https://t.me/cibsecurity/60276 · Telegram Post