OSV-2021-152 Stack-buffer-overflow in ot::NetworkData::ServerTlv::GetServer16
A stack buffer overflow in OpenThread's NetworkData ServerTlv processing allows attackers to cause denial of service or potentially execute code via crafted network data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2021-152?
OSV-2021-152 is a memory corruption vulnerability in openthread, published on 13 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5878
Crash type: Stack-buffer-overflow READ 2
Crash state:
ot::NetworkData::ServerTlv::GetServer16
ot::NetworkData::Leader::RlocLookup
ot::NetworkData::Leader::RegisterNetworkData
Which versions are affected by OSV-2021-152?
1 open source package ship an affected version, including openthread.
| Package | Affected | Fixed in |
|---|---|---|
openthread OSS-Fuzz | All versions | None |
How do I fix OSV-2021-152?
No fix has been published for OSV-2021-152 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-2021-152 being exploited?
There is no known exploitation of OSV-2021-152 in the wild and no public exploit code.