OSV-2018-89 Heap-use-after-free in TunnelIPv6Interface::remove_address
A heap-use-after-free vulnerability in wpantund allows attackers to cause denial of service or potentially execute code via crafted IPv6 tunnel operations.
- 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-2018-89?
OSV-2018-89 is an use after free vulnerability in wpantund, 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=10864
Crash type: Heap-use-after-free READ 4
Crash state:
TunnelIPv6Interface::remove_address
nl::wpantund::NCPInstanceBase::unicast_address_was_removed
nl::wpantund::NCPInstanceBase::on_mesh_prefix_was_removed
Which versions are affected by OSV-2018-89?
1 open source package ship an affected version, including wpantund.
| Package | Affected | Fixed in |
|---|---|---|
wpantund OSS-Fuzz | All versions | None |
How do I fix OSV-2018-89?
No fix has been published for OSV-2018-89 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-2018-89 being exploited?
There is no known exploitation of OSV-2018-89 in the wild and no public exploit code.