OSV-2020-1695 Stack-buffer-overflow in uWS::TopicTree::trimTree
A stack buffer overflow in uWebSockets' TopicTree allows attackers to potentially execute code or cause denial of service via crafted network traffic.
- 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-2020-1695?
OSV-2020-1695 is a memory corruption vulnerability in uwebsockets, published on 4 Sep 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=25381
Crash type: Stack-buffer-overflow WRITE 8
Crash state:
uWS::TopicTree::trimTree
uWS::TopicTree::unsubscribeAll
TopicTree.cpp
Which versions are affected by OSV-2020-1695?
1 open source package ship an affected version, including uwebsockets.
| Package | Affected | Fixed in |
|---|---|---|
uwebsockets OSS-Fuzz | All versions | None |
How do I fix OSV-2020-1695?
No fix has been published for OSV-2020-1695 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is OSV-2020-1695 being exploited?
There is no known exploitation of OSV-2020-1695 in the wild and no public exploit code.