CVE-2021-33316
Critical
Description
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 ChassisID 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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductTrendnet Ti-pg1284i Firmware
PublishedMay 11, 2022
First seenMay 11, 2022
How to fix
Update
- trendnet ti-pg1284i_firmware2.0.2.s0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| trendnet ti-pg1284i_firmware | v < 2.0.2.s0 | 2.0.2.s0 |
| trendnet ti-g102i_firmware | No range specified | — |
| trendnet ti-g160i_firmware | No range specified | — |
| trendnet ti-g642i_firmware | No range specified | — |
| trendnet ti-pg102i_firmware | No range specified | — |
| trendnet ti-pg541i_firmware | No range specified | — |
| trendnet ti-rp262i_firmware | No range specified | — |
| trendnet teg-30102ws_firmware | No range specified | — |
| trendnet tpe-30102ws_firmware | No range specified | — |
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