CVE-2024-34363 Envoy can crash due to uncaught nlohmann JSON exception
Attackers can crash the Envoy proxy by sending incomplete UTF-8 strings, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-34363?
CVE-2024-34363 is a high-severity denial of service vulnerability in Envoyproxy Envoy, published on 4 Jun 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Envoy is a cloud-native, open source edge and service proxy. Due to how Envoy invoked the nlohmann JSON library, the library could throw an uncaught exception from downstream data if incomplete UTF-8 strings were serialized. The uncaught exception would cause Envoy to crash.
Weakness: CWE-248
Which versions are affected by CVE-2024-34363?
1 open source package ship an affected version, including envoy. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
envoy Bitnami | From 1.28.0 | 1.28.4, 1.29.5, 1.30.2 |
Products include Envoyproxy Envoy.
How do I fix CVE-2024-34363?
Upgrade envoy to a fixed version for your release line: 1.28.4, 1.29.5 or 1.30.2.
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-2024-34363 being exploited?
There is no known exploitation of CVE-2024-34363 in the wild and no public exploit code.
Other vulnerabilities in Envoyproxy Envoy
Sources
Also known as BIT-envoy-2024-34363, GHSA-g979-ph9j-5gg4.