Null Pointer Dereference in TRENDnet TI-PG1284i Switch
CVE-2021-33317

7.5HIGH

Key Information:

Vendor

Trendnet

Status
Ti-pg1284i Firmware
Vendor
CVE Published:
11 May 2022

What is CVE-2021-33317?

The TRENDnet TI-PG1284i switch, specifically hardware version 2.0R and prior to version 2.0.2.S0, is susceptible to a null pointer dereference vulnerability in its LLDP (Link Layer Discovery Protocol) component. This vulnerability arises from the failure to verify the presence of a ChassisID TLV in incoming packets. An attacker can exploit this by sending specially crafted LLDP packets to the device, resulting in a crash of the device's process due to a null pointer dereference.

References

https://www.trendnet.com/support/view.asp?cat=4&id=81
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2021-33317 : Null Pointer Dereference in TRENDnet TI-PG1284i Switch