CVE-2009-3877 Denial of service in n/a

Medium 5.0 Published 5 Nov 2009 Updated 7 Aug 2024

Remote attackers can cause denial of service via crafted HTTP headers exploiting ASN.1 parser flaws in Java SE.

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

What is CVE-2009-3877?

CVE-2009-3877 is a medium-severity denial of service vulnerability in Sun Jdk, published on 5 Nov 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Unspecified vulnerability in Sun Java SE in JDK and JRE 5.0 before Update 22, JDK and JRE 6 before Update 17, SDK and JRE 1.3.x before 1.3.1_27, and SDK and JRE 1.4.x before 1.4.2_24 allows remote attackers to cause a denial of service (memory consumption) via crafted HTTP headers, which are not properly parsed by the ASN.1 DER input stream parser, aka Bug Id 6864911.

Weakness: CWE-399

Which versions are affected by CVE-2009-3877?

It affects 3 products.

Products include Sun Jdk, Sun Jre, Sun Sdk.

How do I fix CVE-2009-3877?

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-2009-3877 being exploited?

There is no known exploitation of CVE-2009-3877 in the wild and no public exploit code.

All Sun Jdk vulnerabilities

Sources

Also known as GHSA-23vf-7h8p-j4qp.