CVE-2001-1421 Denial of service in n/a

Medium 5.0 Published 20 Mar 2005 Updated 8 Aug 2024

Remote attackers can crash AOL Instant Messenger by sending a large number of fonts followed by an HTML HR tag.

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-2001-1421?

CVE-2001-1421 is a medium-severity denial of service vulnerability in n/a, published on 20 Mar 2005. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (application crash) via a large number of different fonts followed by an HTML HR tag.

Which versions are affected by CVE-2001-1421?

It affects 1 product.

Products include Aol Instant Messenger.

How do I fix CVE-2001-1421?

No fix has been published for CVE-2001-1421 yet. Limit exposure of the affected software until one is available.

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-2001-1421 being exploited?

There is no known exploitation of CVE-2001-1421 in the wild and no public exploit code.

Sources

Also known as GHSA-w827-crcv-xp2x.