OSV-2023-750 Security exception in org.antlr.v4.runtime.atn.PredictionContext.fromRuleContext

Not scored Published

A security exception in the ANTLR Java runtime can cause a crash, leading to denial of service for applications using the library.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Not stated
Victim action needed
Not needed
Fix
None listed

What is OSV-2023-750?

OSV-2023-750 is a denial of service vulnerability in checkstyle, published on 27 Aug 2023.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61786

Crash type: Security exception
Crash state:
org.antlr.v4.runtime.atn.PredictionContext.fromRuleContext
java.base/jdk.internal.misc.Unsafe.weakCompareAndSetInt
java.base/jdk.internal.misc.Unsafe.getAndAddInt

Which versions are affected by OSV-2023-750?

1 open source package ship an affected version, including checkstyle.

PackageAffectedFixed in
checkstyle OSS-FuzzAll versionsNone

How do I fix OSV-2023-750?

No fix has been published for OSV-2023-750 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-2023-750 being exploited?

There is no known exploitation of OSV-2023-750 in the wild and no public exploit code.

Sources

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