CVE-2009-3626 Denial of service in n/a

Medium 5.0 Published 29 Oct 2009 Updated 7 Aug 2024

Attackers can crash Perl applications by sending UTF-8 characters with invalid codepoints during regex matching, causing denial of service.

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

What is CVE-2009-3626?

CVE-2009-3626 is a medium-severity denial of service vulnerability in n/a, published on 29 Oct 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Perl 5.10.1 allows context-dependent attackers to cause a denial of service (application crash) via a UTF-8 character with a large, invalid codepoint, which is not properly handled during a regular-expression match.

Which versions are affected by CVE-2009-3626?

It affects 1 product.

Products include Perl Perl.

How do I fix CVE-2009-3626?

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-2009-3626 being exploited?

There is no known exploitation of CVE-2009-3626 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2009-3626, GHSA-pr3m-646v-qvfc.