CVE-2024-45810 Envoy crashes for LocalReply in http async client
Attackers can crash the Envoy proxy by triggering specific conditions in the HTTP async client, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-45810?
CVE-2024-45810 is a medium-severity vulnerability in Envoyproxy Envoy, published on 19 Sep 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy will crash when the http async client is handling `sendLocalReply` under some circumstance, e.g., websocket upgrade, and requests mirroring. The http async client will crash during the `sendLocalReply()` in http async client, one reason is http async client is duplicating the status code, another one is the destroy of router is called at the destructor of the async stream, while the stream is deferred deleted at first. There will be problems that the stream decoder is destroyed but its reference is called in `router.onDestroy()`, causing segment fault. This will impact ext_authz if the `upgrade` and `connection` header are allowed, and request mirrorring. This issue has been addressed in versions 1.31.2, 1.30.6, 1.29.9, and 1.28.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Weakness: CWE-119
Which versions are affected by CVE-2024-45810?
1 open source package ship an affected version, including envoy. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
envoy Bitnami | All versions | 1.31.2 |
Products include Envoyproxy Envoy.
How do I fix CVE-2024-45810?
Upgrade envoy to 1.31.2 or later.
Is CVE-2024-45810 being exploited?
There is no known exploitation of CVE-2024-45810 in the wild and no public exploit code.
Other vulnerabilities in Envoyproxy Envoy
Sources
Also known as BIT-envoy-2024-45810, GHSA-qm74-x36m-555q.