CVE-2009-1096

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…

published March 25, 2009

CVSS
—
EPSS
8%
Percentile
94.9
In the wild
Unconfirmed
What it is

⚠️ A crafty JAR file could be your worst nightmare! This buffer overflow in unpack200 lets attackers sneak in with a couple of clever headers, potentially accessing sensitive files or executing rogue code. 💻 Think of it like a delivery driver who doesn’t check the contents of a package. If the driver blindly accepts anything, they could end up delivering a ticking time bomb instead of your new favorite gadget! If exploited, a remote attacker could infiltrate your system, accessing files you thought were safe, or even running harmful code. The fallout could be a security breach that compromises your data—absolutely devastating!

Put simply

Think of it like a delivery driver who doesn’t check the contents of a package. If the driver blindly accepts anything, they could end up delivering a ticking time bomb instead of your new favorite gadget! This vulnerability arises from a buffer overflow in the unpack200 component of Java SE Development Kit (JDK) and Java Runtime Environment (JRE), allowing attackers to manipulate crafted Pack200 headers in a JAR file to execute arbitrary code or access files.

What to do

If exploited, a remote attacker could infiltrate your system, accessing files you thought were safe, or even running harmful code. The fallout could be a security breach that compromises your data—absolutely devastating! To mitigate this vulnerability, upgrade to Java SE 6 Update 13 or later, and Java SE 5.0 Update 18 or later. Always ensure your Java environments are running the latest versions and disable untrusted JAR files. 🛡️ You've got this! Stay proactive with your updates and keep your systems secure! 🚀

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.08233 · 94.9th percentile
Published
2009-03-25T23:00Z
EPSS history
Timeline
  • 25 MAR 23:00Z
    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…
    cvelistv5