OSV-2021-1054 Heap-buffer-overflow in jxl::N_SCALAR::SingleFromSingle

Not scored Published

A heap-buffer-overflow in the JPEG XL library allows attackers to cause denial of service or potentially execute code via crafted images.

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

What is OSV-2021-1054?

OSV-2021-1054 is a memory corruption vulnerability in libjxl, published on 25 Jul 2021.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36490

Crash type: Heap-buffer-overflow WRITE 4
Crash state:
jxl::N_SCALAR::SingleFromSingle
jxl::ThreadPool::SequentialRunnerStatic
jxl::ModularFrameDecoder::ModularImageToDecodedRect

Which versions are affected by OSV-2021-1054?

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

PackageAffectedFixed in
libjxl OSS-FuzzAll versionsNone

How do I fix OSV-2021-1054?

No fix has been published for OSV-2021-1054 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-2021-1054 being exploited?

There is no known exploitation of OSV-2021-1054 in the wild and no public exploit code.

Sources

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