Date Discovered June 18, 2013
Description Oracle Java SE is prone to a memory-corruption vulnerability in Java Runtime Environment.
Attackers can exploit this issue to execute arbitrary code within the context of the user running the affected application. Failed exploit attempts will likely cause denial-of-service conditions.
This vulnerability affects the following supported versions:
7 Update 21 , 6 Update 45 , 5.0 Update 45
Block external access at the network boundary, unless external parties require service. Filter access to the affected computer at the network boundary if global access isn't needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.
Deploy network intrusion detection systems to monitor network traffic for malicious activity. Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity including unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.
Do not follow links provided by unknown or untrusted sources. Web users should be cautious about following links to sites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.
Set web browser security to disable the execution of script code or active content. Disabling the execution of script code in the browser may limit exposure to this and other latent vulnerabilities.
Implement multiple redundant layers of security. Since this issue may be leveraged to execute code, we recommend memory-protection schemes, such as non-executable stack/heap configurations and randomly mapped memory segments. This tactic may complicate exploit attempts of memory-corruption vulnerabilities.
Run all software as a nonprivileged user with minimal access rights.
To limit the impact of latent vulnerabilities, configure applications to run as a nonadministrative user with minimal access rights.
Updates are available. Please see the references or vendor advisory for more information.
Credits Vitaliy Toropov
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