CVE-2019-20201 Denial of service in n/a

Medium 6.5 Published Updated

Attackers can cause a denial of service via infinite loops and memory exhaustion in ezXML by sending crafted XML entities.

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-2019-20201?

CVE-2019-20201 is a medium-severity denial of service 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 ezxml_parse_* functions mishandle XML entities, leading to an infinite loop in which memory allocations occur.

Weakness: CWE-835, CWE-400

Which versions are affected by CVE-2019-20201?

It affects 1 product.

Products include Ezxml Project Ezxml.

How do I fix CVE-2019-20201?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-20201 being exploited?

There is no known exploitation of CVE-2019-20201 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2019-20201, GHSA-h6m3-6r8w-2qqp, UBUNTU-CVE-2019-20201.

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