CVE-2011-3521 Deserialization in n/a
Remote attackers can execute arbitrary code via malicious Java applets or Web Start applications exploiting a deserialization flaw in the Java Runtime Environment.
- 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-2011-3521?
CVE-2011-3521 is a critical unsafe deserialization vulnerability in Sun Jdk, published on 19 Oct 2011. 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
Unspecified vulnerability in the Java Runtime Environment component in Oracle Java SE JDK and JRE, 7, 6 Update 27 and earlier, and 5.0 Update 31 and earlier allows remote untrusted Java Web Start applications and untrusted Java applets to affect confidentiality, integrity, and availability via unknown vectors related to Deserialization.
Which versions are affected by CVE-2011-3521?
It affects 2 products.
How do I fix CVE-2011-3521?
Upgrade to a fixed version.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2011-3521 being exploited?
There is no known exploitation of CVE-2011-3521 in the wild and no public exploit code.
Other vulnerabilities in Sun Jdk
Sources
Also known as GHSA-w2wm-rj3g-vgpf.