CVE-2006-4403 Denial of service in n/a

What is CVE-2006-4403?

CVE-2006-4403 is a medium-severity denial of service vulnerability in Apple Mac Os X, published on 30 Nov 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The FTP server in Apple Mac OS X 10.4.8 and earlier, when FTP Access is enabled, will crash when a login failure occurs with a valid user name, which allows remote attackers to cause a denial of service (crash) and enumerate valid usernames.

Which versions are affected by CVE-2006-4403?

It affects 1 product.

Products include Apple Mac Os X.

How do I fix CVE-2006-4403?

No fix has been published for CVE-2006-4403 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-2006-4403 being exploited?

There is no known exploitation of CVE-2006-4403 in the wild and no public exploit code.

Other vulnerabilities in Apple Mac Os X

• CVE-2014-7169 GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Exploited Critical 9.8
• CVE-2014-6271 GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Exploited Critical 9.8
• CVE-2012-1823 PHP-CGI Query String Parameter Exploited Critical 9.8
• CVE-2021-30713 Apple macOS Unspecified Exploited High 7.8
• CVE-2019-8526 Apple macOS Use-After-Free Exploited High 7.8

All Apple Mac Os X vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-46x7-8pwm-5h5x.