OSV-2022-409 Heap-buffer-overflow in std::__1::__tree_node_base<void*>*& std::__1::__tree<std::__1::__value_type<std:

Not scored Published

A heap-buffer-overflow in the nlohmann JSON library can cause a crash when parsing malformed input, affecting applications using this 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-2022-409?

OSV-2022-409 is a memory corruption vulnerability in json, published on 12 May 2022.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47391

Crash type: Heap-buffer-overflow READ 1
Crash state:
std::__1::__tree_node_base&lt;void*&gt;*&amp; std::__1::__tree&lt;std::__1::__value_type&lt;std:
std::__1::pair&lt;std::__1::__tree_iterator&lt;std::__1::__value_type&lt;std::__1::basic_
nlohmann::detail::binary_reader&lt;nlohmann::basic_json&lt;std::__1::map, std::__1::ve

Which versions are affected by OSV-2022-409?

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

PackageAffectedFixed in
json OSS-FuzzAll versionsNone

How do I fix OSV-2022-409?

No fix has been published for OSV-2022-409 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-2022-409 being exploited?

There is no known exploitation of OSV-2022-409 in the wild and no public exploit code.

Sources

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