Vulnerability in Linux

[ Description ]Official description

In the Linux kernel, the following vulnerability has been resolved: net: arp: terminate device name before lookup The ARP ioctl copies a user-provided struct arpreq into a stack object. Its arp_dev field may contain IFNAMSIZ bytes without a NUL terminator. Such input is passed to dev_get_by_name_rcu() or __dev_get_by_name(), where strcmp() can read past the end of the stack object when a matching alternative interface name exists. Terminate the field before the lookup to prevent the out-of-bounds read.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• git.kernel.org/stable/c/1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263b
• git.kernel.org/stable/c/35e716a70733472ede300540082d64c33bf3b4c9
• git.kernel.org/stable/c/414bbad9928598904313299ac9e037a73f520be1
• git.kernel.org/stable/c/47107491b48ceef0a2faa7a010cfa961f211ef9f
• git.kernel.org/stable/c/7389757d88f54237951d7497d9c4dae7cc6d64be
• git.kernel.org/stable/c/ae6d704dbf9542b0a0830ec91a2db4f30307e7d8
• git.kernel.org/stable/c/ba664d83638640cf454b65167339cbf20dfd6f10
• git.kernel.org/stable/c/d8b6529e80bcb4fb8177121404cbb3377acaebd2