CVE-2013-0443 Weak cryptography in n/a
Remote attackers can exploit weak Diffie-Hellman key validation in Java JSSE to obtain sensitive information or force weak session keys.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-0443?
CVE-2013-0443 is a medium-severity 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 6 and 7, allows remote attackers to affect confidentiality and integrity 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 incorrect validation of Diffie-Hellman keys, which allows remote attackers to conduct a "small subgroup attack" to force the use of weak session keys or obtain sensitive information about the private key.
Which versions are affected by CVE-2013-0443?
It affects 4 products.
Products include Oracle Jdk, Oracle Jre, Sun Jdk, Sun Jre.
How do I fix CVE-2013-0443?
Apply the vendor's patch.
Is CVE-2013-0443 being exploited?
There is no known exploitation of CVE-2013-0443 in the wild and no public exploit code.
Other vulnerabilities in Oracle Jdk
Sources
Also known as GHSA-4p7m-gv97-7rq5.