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Speculative execution exploit Variant 4, [8] is referred to as Speculative Store Bypass (SSB), [1] [9] and has been assigned CVE-2018-3639. [7] SSB is named Variant 4, but it is the fifth variant in the Spectre-Meltdown class of vulnerabilities. [7] Steps involved in exploit: [1] "Slowly" store a value at a memory location
Use a function call with a different number of arguments than the call is designed for, causing a stack misalignment, and code execution after the function returns (patched in Windows 10). [ 27 ] Use a function call with the same number of arguments, but one of pointers passed is treated as an object and writes to a pointer-based offset ...
In June 2022, multiple MMIO Intel CPUs vulnerabilities related to execution in virtual environments were announced. [51] The following CVEs were designated: CVE-2022-21123, CVE-2022-21125, CVE-2022-21166. In July 2022, the Retbleed vulnerability was disclosed affecting Intel Core 6 to 8th generation CPUs and AMD Zen 1, 1+ and 2 generation CPUs ...
Predictive execution is a form of speculative execution where some outcome is predicted and execution proceeds along the predicted path until the actual result is known. If the prediction is true, the predicted execution is allowed to commit; however, if there is a misprediction, execution has to be unrolled and re-executed.
In July 2023 a critical vulnerability in the Zen 2 AMD microarchitecture called Zenbleed was made public. [59] AMD released a microcode update to fix it. [60] In August 2023 a vulnerability in AMD's Zen 1, Zen 2, Zen 3, and Zen 4 microarchitectures called Inception [61] [62] was revealed and assigned CVE-2023-20569. According to AMD it is not ...
In computer security, jailbreaking is defined as the act of removing limitations that a vendor attempted to hard-code into its software or services. [2] A common example is the use of toolsets to break out of a chroot or jail in UNIX-like operating systems [3] or bypassing digital rights management (DRM).
[1] [2] Attacks on encrypted protocols such as HTTPS cannot be read by an IDS unless the IDS has a copy of the private key used by the server to encrypt the communication. [ 3 ] The IDS won't be able to match the encrypted traffic to signatures if it doesn't account for this.
In computer security, heap spraying is a technique used in exploits to facilitate arbitrary code execution.The part of the source code of an exploit that implements this technique is called a heap spray. [1]