OSV-2024-1076 Heap-buffer-overflow in readBytes48

Not scored Published

A heap-buffer-overflow in the SystemZ disassembler can cause a crash when processing malformed instructions, potentially leading to 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-2024-1076?

OSV-2024-1076 is a memory corruption vulnerability in capstone, published on 17 Sep 2024.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42538426

Crash type: Heap-buffer-overflow READ 1
Crash state:
readBytes48
SystemZ_LLVM_getInstruction
SystemZ_getInstruction

Which versions are affected by OSV-2024-1076?

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

PackageAffectedFixed in
capstone OSS-FuzzAll versionsNone

How do I fix OSV-2024-1076?

No fix has been published for OSV-2024-1076 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-2024-1076 being exploited?

There is no known exploitation of OSV-2024-1076 in the wild and no public exploit code.

Sources

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