CVE-2021-33315: Input Validation
The TRENDnet TI-PG1284i switch(hw v2.0R) prior to version 2.0.2.S0 suffers from an integer underflow vulnerability. This vulnerability exists in its lldp related component. Due to lack of proper validation on length field of PortID TLV, by sending a crafted lldp packet to the device, integer underflow would occur and the negative number will be passed to memcpy() later, which may cause buffer overflow or invalid memory access.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2021-33315?
The severity of CVE-2021-33315 is critical with a severity score of 9.8.
Which TRENDnet TI-PG1284i switch is affected by CVE-2021-33315?
The TRENDnet TI-PG1284i switch with hardware version 2.0R is affected by CVE-2021-33315.
What is the vulnerability in CVE-2021-33315?
CVE-2021-33315 is an integer underflow vulnerability in the lldp component of the TRENDnet TI-PG1284i switch.
How can I fix CVE-2021-33315?
To fix CVE-2021-33315, update your TRENDnet TI-PG1284i switch firmware to version 2.0.2.S0 or newer.
Where can I find more information about CVE-2021-33315?
You can find more information about CVE-2021-33315 on the [TRENDnet support page](https://www.trendnet.com/support/view.asp?cat=4&id=81).