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EternalBlue [5] is a computer exploit software developed by the U.S. National Security Agency (NSA). [6] It is based on a vulnerability in Microsoft Windows that allowed users to gain access to any number of computers connected to a network.
The receiving computer then must send exactly the same payload back to the sender. [ citation needed ] The affected versions of OpenSSL allocate a memory buffer for the message to be returned based on the length field in the requesting message, without regard to the actual size of that message's payload.
First reported in May 2019, it is present in all unpatched Windows NT-based versions of Microsoft Windows from Windows 2000 through Windows Server 2008 R2 and Windows 7. Microsoft issued a security patch (including an out-of-band update for several versions of Windows that have reached their end-of-life, such as Windows XP ) on 14 May 2019.
Shellshock, also known as Bashdoor, [1] is a family of security bugs [2] in the Unix Bash shell, the first of which was disclosed on 24 September 2014.Shellshock could enable an attacker to cause Bash to execute arbitrary commands and gain unauthorized access [3] to many Internet-facing services, such as web servers, that use Bash to process requests.
PrintNightmare is a critical security vulnerability affecting the Microsoft Windows operating system. [2] [5] The vulnerability occurred within the print spooler service. [6] [7] There were two variants, one permitting remote code execution (CVE-2021-34527), and the other leading to privilege escalation (CVE-2021-1675).
Meltdown exploits a race condition, inherent in the design of many modern CPUs.This occurs between memory access and privilege checking during instruction processing. . Additionally, combined with a cache side-channel attack, this vulnerability allows a process to bypass the normal privilege checks that isolate the exploit process from accessing data belonging to the operating system and other ...
Pwn2Own is a computer hacking contest held annually at the CanSecWest security conference. [1] First held in April 2007 in Vancouver, [2] the contest is now held twice a year, [3] most recently in March 2024. [4]
In early Windows 11 previews, the Blue Screen of Death was changed to black. [1] A Green Screen of Death is a green screen that appears on a TiVo with a message that includes the words "the DVR has detected a