OSV-2022-1260 Heap-buffer-overflow in AffixMgr::cpdcase_check

Not scored Published

A heap-buffer-overflow in Hunspell's affix checking can cause a crash when processing malformed input, affecting 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-2022-1260?

OSV-2022-1260 is a memory corruption vulnerability in hunspell, published on 13 Dec 2022.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=54244

Crash type: Heap-buffer-overflow READ 1
Crash state:
AffixMgr::cpdcase_check
AffixMgr::compound_check
HunspellImpl::checkword

Which versions are affected by OSV-2022-1260?

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

PackageAffectedFixed in
hunspell OSS-FuzzAll versionsNone

How do I fix OSV-2022-1260?

No fix has been published for OSV-2022-1260 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-2022-1260 being exploited?

There is no known exploitation of OSV-2022-1260 in the wild and no public exploit code.

Sources

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