CVE-2021-33315 Integer overflow in n/a
An attacker can trigger an integer underflow in the LLDP component of TRENDnet switches via crafted packets, potentially leading to buffer overflow and code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-33315?
CVE-2021-33315 is a critical vulnerability in n/a, published on 11 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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 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.
Weakness: CWE-20
Which versions are affected by CVE-2021-33315?
It affects 9 products.
Products include Trendnet Teg-30102ws Firmware, Trendnet Ti-G102i Firmware, Trendnet Ti-G160i Firmware, Trendnet Ti-G642i Firmware, Trendnet Ti-Pg102i Firmware, Trendnet Ti-Pg1284i Firmware and 3 more.
How do I fix CVE-2021-33315?
No fix has been published for CVE-2021-33315 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-33315 being exploited?
There is no known exploitation of CVE-2021-33315 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-99r9-46f4-q5v5.