Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-33317

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
11/05/2022
Last modified:
20/05/2022

Description

The TRENDnet TI-PG1284i switch(hw v2.0R) prior to version 2.0.2.S0 suffers from a null pointer dereference vulnerability. This vulnerability exists in its lldp related component. Due to fail to check if ChassisID TLV is contained in the packet, by sending a crafted lldp packet to the device, an attacker can crash the process due to null pointer dereference.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:trendnet:ti-pg1284i_firmware:*:*:*:*:*:*:*:* 2.0.2.s0 (excluding)
cpe:2.3:h:trendnet:ti-pg1284i:2.0r:*:*:*:*:*:*:*
cpe:2.3:o:trendnet:ti-g102i_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:trendnet:ti-g102i:-:*:*:*:*:*:*:*
cpe:2.3:o:trendnet:ti-g160i_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:trendnet:ti-g160i:-:*:*:*:*:*:*:*
cpe:2.3:o:trendnet:ti-g642i_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:trendnet:ti-g642i:-:*:*:*:*:*:*:*
cpe:2.3:o:trendnet:ti-pg102i_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:trendnet:ti-pg102i:-:*:*:*:*:*:*:*
cpe:2.3:o:trendnet:ti-pg541i_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:trendnet:ti-pg541i:-:*:*:*:*:*:*:*
cpe:2.3:o:trendnet:ti-rp262i_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:trendnet:ti-rp262i:-:*:*:*:*:*:*:*
cpe:2.3:o:trendnet:teg-30102ws_firmware:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools