OSV-2020-473 Heap-use-after-free in Envoy::Server::InitManagerImpl::initializeTarget
A heap-use-after-free vulnerability in Envoy's initialization manager allows attackers to cause denial of service or potentially execute code.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2020-473?
OSV-2020-473 is an use after free vulnerability in envoy, published on 1 Jul 2020. It can be exploited over the network, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13221
Crash type: Heap-use-after-free READ 8
Crash state:
Envoy::Server::InitManagerImpl::initializeTarget
Envoy::Server::InitManagerImpl::initialize
Envoy::Server::ValidationInstance::initialize
Which versions are affected by OSV-2020-473?
1 open source package ship an affected version, including envoy.
| Package | Affected | Fixed in |
|---|---|---|
envoy OSS-Fuzz | All versions | None |
How do I fix OSV-2020-473?
No fix has been published for OSV-2020-473 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is OSV-2020-473 being exploited?
There is no known exploitation of OSV-2020-473 in the wild and no public exploit code.