Linux kernel: denial of service via IPOPT_CIPSO
Synthesis of the vulnerability
A local attacker can create a socket with the CIPSO IP option, in order to stop the system.Impacted products: Linux
BID-58052, CVE-2013-0310, RHSA-2013:0496-02, VIGILANCE-VUL-12440.
Description of the vulnerability
The CIPSO (Commercial Internet Protocol Security Option) IP option is used to define the sensitivity level (Multi Level Security) of a network message.
The Linux kernel implements this option. However, this implementation is invalid, and triggers a NULL pointer dereference.
A local attacker can therefore create a socket with the CIPSO IP option, in order to stop the system.Complete Vigil@nce bulletin....
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