Linux · Linux Kernel · CVE-2013-3227
**Name of the Vulnerable Software and Affected Versions**
Linux kernel versions prior to 3.9-rc7
**Description**
The issue allows local users to obtain sensitive information from kernel stack memory. This is due to the `caif seqpkt recvmsg` function in `net/caif/caif socket.c` not initializing a certain length variable, which can be exploited via a crafted `recvmsg` or `recvfrom` system call. Multiple vulnerabilities in the Linux operating system package may lead to disruption of confidentiality, integrity, and availability of protected information, potentially exploitable by a local attacker.
**Recommendations**
For Linux kernel versions prior to 3.9-rc7, update to version 3.9-rc7 or later to resolve the issue.
As a temporary workaround, consider restricting access to the `recvmsg` and `recvfrom` system calls to minimize the risk of exploitation.