Questions tagged [virtual-memory]

In computing, virtual memory is a memory management technique developed for multitasking kernels. This technique virtualizes a computer architecture's various forms of computer data storage (such as random-access memory and disk storage), allowing a program to be designed as though there is only one kind of memory, "virtual" memory, which behaves like directly addressable read/write memory (RAM).

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Why encrypt data in memory?

I saw that KeePass not only encrypts its password-database-file, it also can encrypt the passwords it holds in memory. This is just an example. I thinking of a new project dealing with sensitve / ...
user573215's user avatar
29 votes
7 answers
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Reading physical memory frame previously owned by another process to read contents of its memory page

I had a conversation with @anger32 who states that zeroing a physical memory page frame when passing the page backed by that frame to another process is not the responsibility of OSes like Windows and ...
KOLANICH's user avatar
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1 answer
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Effects of DDoS attacks on memory use under Linux

Can someone whose Linux system is under DDoS attacks give me exact data on the effects of the Low Orbit Ion Cannon (LOIC), the High Orbit Ion Cannon (HOIC), Slowloris, PyLoris, Hping etc. on memory ...
nlovric's user avatar
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8 votes
1 answer
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Does Linux kernel use DEP for kernel memory?

Does the Linux kernel use DEP internally for its kernel memory? In other words, does the Linux kernel take care to ensure that, when the kernel is executing (in kernel mode), every executable ...
D.W.'s user avatar
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7 votes
2 answers
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RAM Encryption. Is it possible? [duplicate]

Without adding any additional hardware, is RAM encryption possible? If so are there any known and currently used implementations for Linux or Windows systems? And if this is something that is possible ...
16b7195abb140a3929bbc322d1c6f1's user avatar
4 votes
2 answers
694 views

Heartbleed and heap management - Why user data and passwords are kept in memory?

If I understand correctly the hearbleed vulnerability, only the heap of the OpenSSL process can be retrieved by an attacker (or part of depending on the memory allocation type that is used). Then, how ...
ack__'s user avatar
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