CVE-2013-2456: Medium severity ORACLE JRE vulnerability
It was discovered that the ObjectOutputStream class did not properly perform certain access checks when handling subclasses. An untrusted Java application or applet could possibly use this flaw to disclose potentially sensitive information.
Other sources
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2013-2456?
The severity of CVE-2013-2456 is considered medium as it allows untrusted Java applications to potentially disclose sensitive information.
How do I fix CVE-2013-2456?
To fix CVE-2013-2456, upgrade to a version of the Java Runtime Environment (JRE) or Java Development Kit (JDK) that has incorporated the necessary patches.
Which versions are affected by CVE-2013-2456?
CVE-2013-2456 affects Oracle JRE and JDK versions 1.7.0 through 1.7.0-update17.
Is CVE-2013-2456 a critical vulnerability?
CVE-2013-2456 is not classified as critical, but it poses a risk that should be addressed to safeguard sensitive data.
What type of vulnerability is CVE-2013-2456?
CVE-2013-2456 is an access control vulnerability specifically in the ObjectOutputStream class of the Java Runtime Environment.