CVE-2013-2456 Deserialization in n/a

Medium 5.0 Published 18 Jun 2013 Updated 6 Aug 2024

Remote attackers can exploit a deserialization flaw in the Java Runtime Environment to compromise data confidentiality.

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

What is CVE-2013-2456?

CVE-2013-2456 is a medium-severity unsafe deserialization vulnerability in Oracle Jdk, published on 18 Jun 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and earlier, 6 Update 45 and earlier, and 5.0 Update 45 and earlier, and OpenJDK 7, allows remote attackers to affect confidentiality via unknown vectors related to Serialization. NOTE: the previous information is from the June 2013 CPU. Oracle has not commented on claims from another vendor that this issue is related to improper access checks for subclasses in the ObjectOutputStream class.

Which versions are affected by CVE-2013-2456?

It affects 4 products.

Products include Oracle Jdk, Oracle Jre, Sun Jdk, Sun Jre.

How do I fix CVE-2013-2456?

Apply the vendor's patch.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2013-2456 being exploited?

There is no known exploitation of CVE-2013-2456 in the wild and no public exploit code.

All Oracle Jdk vulnerabilities

Sources

Also known as GHSA-r2jw-6w2w-mv45.