PT-2023-19071 · Unknown · Contiki-Ng

Diff-Fusion + 2 · Published 2023-01-25 · Updated 2023-02-07 · CVE-2023-23609

Positive Technologies (AI Summary)

CVSS v3.1

8.2

High

Base vector

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

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

Description The issue concerns an out-of-bounds write in the BLE-L2CAP module of Contiki-NG, an open-source operating system for IoT devices. This module handles packet fragmentation up to the configured MTU size. When fragments are reassembled, they are stored in a packet buffer without verifying if the buffer is large enough, potentially leading to an out-of-bounds write of up to 1152 bytes in the default configuration.

Recommendations For versions prior to and including 4.8, apply the patch in Contiki-NG pull request #2254 to fix the issue. As a temporary workaround, consider restricting the use of the BLE-L2CAP module until the patch is applied.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2023-23609

GHSA-QR4Q-6H3M-H3G7

Affected Products

Contiki-Ng

References · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/23xxx/CVE-2023-23609.json · Exploit
• https://github.com/contiki-ng/contiki-ng/pull/2254 · Patch
• https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-qr4q-6h3m-h3g7 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-23609 · Security Note
• https://osv.dev/vulnerability/CVE-2023-23609 · Vendor Advisory
• https://t.me/cvenotify/43814 · Telegram Post