OSV-2018-46 Heap-buffer-overflow in GDAL_LercNS::RLE::readCount

Not scored Published

A heap-buffer-overflow in GDAL's Lerc decompression allows attackers to cause crashes or potentially execute code via malicious files.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Not stated
Victim action needed
A user has to click or open something
Fix
None listed

What is OSV-2018-46?

OSV-2018-46 is a memory corruption vulnerability in gdal, published on 13 Jan 2021.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9282

Crash type: Heap-buffer-overflow READ 2
Crash state:
GDAL_LercNS::RLE::readCount
GDAL_LercNS::RLE::decompress
GDAL_LercNS::Lerc2::ReadMask

Which versions are affected by OSV-2018-46?

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

PackageAffectedFixed in
gdal OSS-FuzzAll versionsNone

How do I fix OSV-2018-46?

No fix has been published for OSV-2018-46 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-2018-46 being exploited?

There is no known exploitation of OSV-2018-46 in the wild and no public exploit code.

Sources

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