OSV-2022-590 Heap-use-after-free in .tmpoLlNv4

Not scored Published

A heap-use-after-free vulnerability in the Wasmtime runtime allows attackers to potentially execute arbitrary code or cause a denial of service.

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

What is OSV-2022-590?

OSV-2022-590 is an use after free vulnerability in wasmtime, published on 19 Jul 2022.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=49166

Crash type: Heap-use-after-free READ 8
Crash state:
.tmpoLlNv4
.tmpoLlNv4
wasmtime_setjmp

Which versions are affected by OSV-2022-590?

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

PackageAffectedFixed in
wasmtime OSS-FuzzAll versionsNone

How do I fix OSV-2022-590?

No fix has been published for OSV-2022-590 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-2022-590 being exploited?

There is no known exploitation of OSV-2022-590 in the wild and no public exploit code.

Sources

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