LinuxKernel DoS Vulnerability

Article title: kernel DoS Vulnerability. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

Detailed description:

Linux Kernel is the Kernel used by open source Linux.

Linux Kernel has a socket processing vulnerability. a local attacker may exploit this vulnerability to cause DoS attacks on the server.

Linux Kernel does not check the source when buffering data transmitted through a pair of sockets. Attackers can open many connection file descriptors or socket pairs and create the largest Kernel buffer for data transmitted between two sockets. If the process enters the zombie state or closes the file descriptor when the reference is kept open, the data will be stored in the Kernel until the transfer is complete. Repeated attacks consume system memory resources.

Affected systems:

Linux kernel 2.6.12

Linux kernel 2.4.22

Patch download:

Http://www.kernel.org/