Mpb

**Name of the Vulnerable Software and Affected Versions** Linux kernel versions prior to 3.12.4 **Description** The issue allows local users to obtain sensitive information from kernel stack memory. This is due to the pn recvmsg function updating a certain length value before ensuring that an associated data structure has been initialized. The sensitive information can be accessed via system calls such as `recvfrom`, `recvmmsg`, or `recvmsg`. **Recommendations** For Linux kernel versions prior to 3.12.4, update to version 3.12.4 or later to resolve the issue. As a temporary workaround, consider restricting the use of the `pn recvmsg` function until a patch is available. Additionally, restrict access to the `recvmmsg` and `recvmsg` system calls to minimize the risk of exploitation.

**Name of the Vulnerable Software and Affected Versions** Linux kernel versions prior to 3.12.4 **Description** The issue allows local users to obtain sensitive information from kernel stack memory. This can be achieved via certain system calls, including (1) recvfrom, (2) recvmmsg, or (3) recvmsg, related to various IPv4 and IPv6 protocol files. **Recommendations** For Linux kernel versions prior to 3.12.4, update to version 3.12.4 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** Linux kernel versions prior to 3.12.4 **Description** The issue allows local users to obtain sensitive information from kernel stack memory. This is due to the `l2tp ip recvmsg` function updating a certain length value before ensuring that an associated data structure has been initialized. The sensitive information can be obtained via a `(1) recvfrom`, `(2) recvmmsg`, or `(3) recvmsg` system call. **Recommendations** For Linux kernel versions prior to 3.12.4, update to version 3.12.4 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** Linux kernel versions prior to 3.12.4 **Description** The issue allows local users to obtain sensitive information from kernel stack memory. This can be achieved via certain system calls, including `recvfrom`, `recvmmsg`, or `recvmsg`. The `dgram recvmsg` function in `net/ieee802154/dgram.c` updates a length value without ensuring the associated data structure has been initialized. **Recommendations** For Linux kernel versions prior to 3.12.4, update to version 3.12.4 or later to resolve the issue.