CVE-2020-19475 Memory corruption in n/a

Medium 5.5 Published Updated

Attackers can cause a Denial of Service in PDF2JSON via an invalid memory write in the CCITTFaxStream::lookChar function.

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

What is CVE-2020-19475?

CVE-2020-19475 is a medium-severity memory corruption vulnerability in n/a, published on 21 Jul 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

An issue has been found in function CCITTFaxStream::lookChar in PDF2JSON 0.70 that allows attackers to cause a Denial of Service due to an invalid write of size 2 .

Weakness: CWE-787

Which versions are affected by CVE-2020-19475?

It affects 1 product.

Products include Flowpaper Pdf2json.

How do I fix CVE-2020-19475?

No fix has been published for CVE-2020-19475 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 CVE-2020-19475 being exploited?

There is no known exploitation of CVE-2020-19475 in the wild and no public exploit code.

Sources

Also known as GHSA-qh48-crf5-rw59.

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