OSV-2020-1694 Segv on unknown address in std::__1::__tree<std::__1::__value_type<unsigned int, std::__1::pair<std::__1::b
A segmentation fault in uWebSockets' TopicTree drain function allows remote attackers to cause a denial of service via crafted input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2020-1694?
OSV-2020-1694 is a memory corruption vulnerability in uwebsockets, published on 4 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25376
Crash type: Segv on unknown address
Crash state:
std::__1::__tree<std::__1::__value_type<unsigned int, std::__1::pair<std::__1::b
uWS::TopicTree::drain
std::__1::__function::__func<LLVMFuzzerTestOneInput::$_1, std::__1::allocator<LL
Which versions are affected by OSV-2020-1694?
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-2020-1694?
No fix has been published for OSV-2020-1694 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-2020-1694 being exploited?
There is no known exploitation of OSV-2020-1694 in the wild and no public exploit code.