Linux uses the “Change on Write” (COW) approach to reduce unnecessary duplication of memory objects.
Quomodo tu Cowsay?
Cowsay naves cum paucis variationibus, quae vocantur bovis files, quae in /usr/share/cowsay solent inveniri. Videre bovem fasciculum optiones in systemate tuo praesto, vexillo uti post bovum. Tum uti -f- vexillum ad unum experior. $ cowsay -f- draco "pro cover currite, sternumenta" venientem sentio."
Quod nomen Cowsay?
bovesay programmata est quae ASCII bovis picturas cum nuntio gignit. Imagines etiam generare potest utentes imagines prae-factae aliorum animalium, ut Tux Penguin, terque Linux.
What are kernel exploits?
Typically, a kernel exploit involves making a syscall (an interface that allows userspace processes to communicate with the kernel) with arguments designed specially to cause unintended behavior, despite the syscall attempting to only allow valid arguments.
What is a zero day threat?
A zero-day threat (also sometimes called a zero-hour threat) is one that hasn’t been seen before and doesn’t match any known malware signatures.
What is the difference between user space and kernel space?
Kernel spatium stricte servatur ad currendum nucleum nuclei, extensiones nuclei praecipuas, et maxime rectores fabrica. E contra, spatium usoris est memoria area in qua programmata applicationis et nonnulli rectores faciunt.
What is a zero hour attack?
“A zero-day (or zero-hour or day zero) attack or threat is an attack that exploits a previously unknown vulnerability in a computer application, one that developers have not had time to address and patch. There are zero days between the time the vulnerability is discovered (and made public), and the first attack.”
Why is it called Zero-Day?
The term “zero-day” refers to the number of days that the software vendor has known about the hole. The term apparently originated in the days of digital bulletin boards, or BBSs, when it referred to the number of days since a new software program had been released to the public.
What does 0day mean?
A zero-day (0day) exploit is a cyber attack targeting a software vulnerability which is unknown to the software vendor or to antivirus vendors. The attacker spots the software vulnerability before any parties interested in mitigating it, quickly creates an exploit, and uses it for an attack.