GnuTLS TLS Record Application GenericBlockCipher Parsing Integer Overflow (CVE-2012-1573)
|Check Point Reference:||CPAI-2012-298|
|Source:||Secunia Advisory: 48488|
|Protection Provided by:||
Who is Vulnerable?
Free Software Foundation GnuTLS Prior to 2.12.18
Free Software Foundation GnuTLS Prior to 3.0.16
An integer overflow vulnerability has been reported in GnuTLS.
The vulnerability is due to improper handling of certain fields during the decryption process. A remote attacker can exploit this vulnerability by sending a specially crafted TLS Application Data packet to the server. Successful exploitation would allow an attacker to execute arbitrary code on the target server.
This protection will detect and block the transferring of a malicious message to the target server.
In order for the protection to be activated, update your product to the latest update. For information on how to update , go to SBP-2006-05, Protection tab and select the version of your choice.
To configure the defense, select your product from the list below and follow the related protection steps.
Security Gateway R75 / R71 / R70
How Can I Protect My Network?
- In the IPS tab, click Protections and find the GnuTLS TLS Record Application GenericBlockCipher Parsing Integer Overflow protection using the Search tool and Edit the protection's settings.
- Install policy on all modules.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: OpenSSL Enforcement Violation
Attack Information: GnuTLS TLS Record Application GenericBlockCipher Parsing Integer Overflow