Search results
Results from the WOW.Com Content Network
Instead of a single easy-to-fix vulnerability, the Spectre white paper [1] describes a whole class [57] of potential vulnerabilities. They are all based on exploiting side effects of speculative execution, a common means of hiding memory latency and so speeding up execution in modern microprocessors.
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.
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 ...
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 ...
An official document from ARM informs that all ARM CPUs affected by Spectre are also affected by Retbleed. [2] Windows is not vulnerable because the existing mitigations already tackle it. [1] Linux kernels 5.18.14 and 5.19 contain the fixes. [5] [6] The 32-bit Linux kernel, which is vulnerable, will not receive updates to fix the issue. [7]
Foreshadow, known as L1 Terminal Fault (L1TF) by Intel, [1] [2] is a vulnerability that affects modern microprocessors that was first discovered by two independent teams of researchers in January 2018, but was first disclosed to the public on 14 August 2018. [18]
A remote exploit works over a network and exploits the security vulnerability without any prior access to the vulnerable system. A local exploit requires prior access or physical access to the vulnerable system, and usually increases the privileges of the person running the exploit past those granted by the system administrator.
As a general guideline, one should first consider issues to be merged, then issues should be split by the type of vulnerability (e.g., buffer overflow vs. stack overflow), then by the software version affected (e.g., if one issue affects version 1.3.4 through 2.5.4 and the other affects 1.3.4 through 2.5.8 they would be SPLIT) and then by the ...