CVE-2009-1096 Memory corruption in n/a

Critical 10.0 Published 25 Mar 2009 Updated 7 Aug 2024

Remote attackers can execute arbitrary code or access files by tricking users into opening a malicious JAR file with crafted headers.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2009-1096?

CVE-2009-1096 is a critical memory corruption vulnerability in Sun Jdk, published on 25 Mar 2009. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Buffer overflow in unpack200 in Java SE Development Kit (JDK) and Java Runtime Environment (JRE) 5.0 Update 17 and earlier, and 6 Update 12 and earlier, allows remote attackers to access files or execute arbitrary code via a JAR file with crafted Pack200 headers.

Weakness: CWE-119

Which versions are affected by CVE-2009-1096?

It affects 2 products.

Products include Sun Jdk, Sun Jre.

How do I fix CVE-2009-1096?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2009-1096 being exploited?

There is no known exploitation of CVE-2009-1096 in the wild and no public exploit code.

All Sun Jdk vulnerabilities

Sources

Also known as GHSA-67c2-9w2r-cg77.