CVE-2009-0751 Denial of service in n/a

Medium 5.0 Published Updated

Remote attackers can crash the Yaws web server by sending requests with excessive headers, causing memory exhaustion.

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

What is CVE-2009-0751?

CVE-2009-0751 is a medium-severity denial of service vulnerability in n/a, published on 2 Mar 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Yaws before 1.80 allows remote attackers to cause a denial of service (memory consumption and crash) via a request with a large number of headers.

Weakness: CWE-399

Which versions are affected by CVE-2009-0751?

It affects 1 product.

Products include Yaws Yaws.

How do I fix CVE-2009-0751?

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-2009-0751 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-0751 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as DEBIAN-CVE-2009-0751, DSA-1740-1, GHSA-9574-q3cv-v9f8.

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