CVE-2013-0440 Denial of service in n/a
Remote attackers can cause denial of service in Java Runtime Environment via improper handling of SSL/TLS ClientHello packets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-0440?
CVE-2013-0440 is a medium-severity denial of service vulnerability in Oracle Jdk, published on 2 Feb 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 through Update 11, 6 through Update 38, 5.0 through Update 38, and 1.4.2_40 and earlier, and OpenJDK 7, allows remote attackers to affect availability via vectors related to JSSE. NOTE: the previous information is from the February 2013 CPU. Oracle has not commented on claims from another vendor that this issue is related to CPU consumption in the SSL/TLS implementation via a large number of ClientHello packets that are not properly handled by (1) ClientHandshaker.java and (2) ServerHandshaker.java.
Which versions are affected by CVE-2013-0440?
It affects 4 products.
Products include Oracle Jdk, Oracle Jre, Sun Jdk, Sun Jre.
How do I fix CVE-2013-0440?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2013-0440 being exploited?
There is no known exploitation of CVE-2013-0440 in the wild and no public exploit code.
Other vulnerabilities in Oracle Jdk
Sources
Also known as GHSA-f73w-73w8-h7j9.