CVE-2021-33316

EUVD-2021-20026
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 70%
Affected Products (NVD)
VendorProductVersion
trendnetti-pg1284i_firmware
𝑥
< 2.0.2.s0
trendnetti-g102i_firmware
-
trendnetti-g160i_firmware
-
trendnetti-g642i_firmware
-
trendnetti-pg102i_firmware
-
trendnetti-pg541i_firmware
-
trendnetti-rp262i_firmware
-
trendnetteg-30102ws_firmware
-
trendnettpe-30102ws_firmware
-
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.trendnet.com/support/view.asp?cat=4&id=81
https://www.trendnet.com/support/view.asp?cat=4&id=81