CVE-2023-39540 Denial of service in Gecko Platform
A remote attacker can cause a denial of service in Silicon Labs uC-TCP-IP by sending a specially crafted ICMP packet that triggers an out-of-bounds read.
- 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-2023-39540?
CVE-2023-39540 is a medium-severity denial of service vulnerability in Silicon Labs Gecko Platform, published on 20 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted network packet can lead to an out-of-bounds read. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability concerns a denial of service within the parsing an IPv4 ICMP packet.
Which versions are affected by CVE-2023-39540?
It affects 1 product.
Products include Weston-Embedded Uc-Tcp-Ip.
How do I fix CVE-2023-39540?
No fix has been published for CVE-2023-39540 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-39540 being exploited?
There is no known exploitation of CVE-2023-39540 in the wild and no public exploit code.
Other vulnerabilities in Silicon Labs Gecko Platform
Sources
Also known as GHSA-7v7g-38mv-3237.