CVE-2020-15689 Null dereference in n/a

High 7.5 Published Updated

A NULL pointer dereference in Appweb with CGI support allows remote attackers to cause a denial of service via a malformed Range header.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-15689?

CVE-2020-15689 is a high-severity vulnerability in n/a, published on 13 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Appweb before 7.2.2 and 8.x before 8.1.0, when built with CGI support, mishandles an HTTP request with a Range header that lacks an exact range. This may result in a NULL pointer dereference and cause a denial of service.

Weakness: CWE-476

Which versions are affected by CVE-2020-15689?

It affects 1 product.

Products include Embedthis Appweb.

How do I fix CVE-2020-15689?

No fix has been published for CVE-2020-15689 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-15689 being exploited?

There is no known exploitation of CVE-2020-15689 in the wild and no public exploit code.

Sources

Also known as GHSA-vr4r-jm4f-grc9.

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