PT-2021-4298 · Texas Instruments · Cc256X

Published 2021-09-07 · Updated 2021-09-09 · CVE-2021-34149

Positive Technologies (AI Summary)

CVSS v2.0

3.3

Low

Base vector

AV:A/AC:L/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions Texas Instruments CC256XCQFN-EM (affected versions not specified)

Description The Bluetooth Classic implementation does not properly handle the reception of continuous LMP AU Rand packets, allowing attackers in radio range to trigger a denial of service (deadlock) of the device by flooding it with LMP AU Rand packets after the paging procedure. The issue is also related to buffer overflow errors in dynamic memory.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

BDU:2021-04907

CVE-2021-34149

Affected Products

Cc256X

References · 7

• https://ti.com/product/CC2564C · Vendor Advisory
• https://ti.com/tool/CC256XC-BT-SP#primary-sw · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-04907 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-34149 · Security Note
• https://t.me/cibsecurity/28315 · Telegram Post
• https://dl.packetstormsecurity.net/papers/general/braktooth.pdf · Note
• https://cybersecurity-help.cz/vdb/SB2021090612 · Note