CVE-2019-20202 Memory corruption in n/a

Medium 6.5 Published Updated

An attacker can cause a segmentation fault and denial of service in applications using ezXML by triggering an invalid free in the character content parser.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2019-20202?

CVE-2019-20202 is a medium-severity memory corruption vulnerability in n/a, published on 31 Dec 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An issue was discovered in ezXML 0.8.3 through 0.8.6. The function ezxml_char_content() tries to use realloc on a block that was not allocated, leading to an invalid free and segmentation fault.

Weakness: CWE-763

Which versions are affected by CVE-2019-20202?

It affects 1 product.

Products include Ezxml Project Ezxml.

How do I fix CVE-2019-20202?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2019-20202 being exploited?

There is no known exploitation of CVE-2019-20202 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2019-20202, GHSA-94p7-57m2-58qh, UBUNTU-CVE-2019-20202.

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