PT-2022-10228 · Trendnet · Trendnet Ti-Pg1284I

Qian Chen · Published 2022-05-11 · Updated 2022-05-20 · CVE-2021-33317

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions TRENDnet TI-PG1284i switch (hw v2.0R) versions prior to 2.0.2.S0

Description The issue exists in the lldp related component of the switch due to a failure to check if the ChassisID TLV is contained in a packet. By sending a crafted lldp packet to the device, an attacker can cause a null pointer dereference, leading to a process crash.

Recommendations For versions prior to 2.0.2.S0, update to version 2.0.2.S0 or later to resolve the issue. As a temporary workaround, consider restricting access to the lldp component to minimize the risk of exploitation.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2021-33317

Affected Products

Trendnet Ti-Pg1284I

References · 4

• https://osv.dev/vulnerability/CVE-2021-33317 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-33317 · Security Note
• https://trendnet.com/support/view.asp?cat=4&id=81 · Vendor Advisory
• https://t.me/cvenotify/30043 · Telegram Post