OSV-2021-564 Uncaught exception in com.fasterxml.jackson.databind.deser.std.BaseNodeDeserializer.deserializeArray
An uncaught exception in Jackson's array deserialization can cause a denial of service when processing malicious JSON 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-2021-564?
OSV-2021-564 is a denial of service vulnerability in jackson-core, published on 27 Mar 2021. 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=32514
Crash type: Uncaught exception
Crash state:
com.fasterxml.jackson.databind.deser.std.BaseNodeDeserializer.deserializeArray
java.base/java.lang.Module.isStaticallyExportedOrOpen
java.base/java.lang.Module.implIsExportedOrOpen
Which versions are affected by OSV-2021-564?
1 open source package ship an affected version, including jackson-core.
| Package | Affected | Fixed in |
|---|---|---|
jackson-core OSS-Fuzz | All versions | None |
How do I fix OSV-2021-564?
No fix has been published for OSV-2021-564 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is OSV-2021-564 being exploited?
There is no known exploitation of OSV-2021-564 in the wild and no public exploit code.