CVE-2019-20006 Use after free in n/a

High 7.5 Published 26 Dec 2019 Updated 5 Aug 2024

A use-after-free vulnerability in ezXML allows attackers to cause a segmentation fault and denial of service via crafted XML input.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2019-20006?

CVE-2019-20006 is a high-severity use after free vulnerability in n/a, published on 26 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in ezXML 0.8.3 through 0.8.6. The function ezxml_char_content puts a pointer to the internal address of a larger block as xml->txt. This is later deallocated (using free), leading to a segmentation fault.

Weakness: CWE-416

Which versions are affected by CVE-2019-20006?

It affects 1 product.

Products include Ezxml Project Ezxml.

How do I fix CVE-2019-20006?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2019-20006 being exploited?

There is no known exploitation of CVE-2019-20006 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2019-20006, GHSA-2mjx-47r7-xrpj, UBUNTU-CVE-2019-20006.