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Log4Shell (CVE-2021-44228) is a zero-day vulnerability reported in November 2021 in Log4j, a popular Java logging framework, involving arbitrary code execution. [2] [3] The vulnerability had existed unnoticed since 2013 and was privately disclosed to the Apache Software Foundation, of which Log4j is a project, by Chen Zhaojun of Alibaba Cloud's security team on 24 November 2021.
The hack currently sits as the largest-ever breach in the cryptocurrency sector by dollar value. [218] It further damaged the value of SLP. [219] On 8 April 2022, Sky Mavis said it expected it would be able to recover some of the funds, but it would take several years. [220]
As with non-Java applications, security vulnerabilities can stem from parts of the platform which may not initially appear to be security-related. For example, in 2011, Oracle issued a security fix for a bug in the Double.parseDouble method. [2] This method converts a string such as "12.34" into the equivalent double-precision floating point ...
Because side-channel attacks rely on the relationship between information emitted (leaked) through a side channel and the secret data, countermeasures fall into two main categories: (1) eliminate or reduce the release of such information and (2) eliminate the relationship between the leaked information and the secret data, that is, make the leaked information unrelated, or rather uncorrelated ...
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 ...
Parameterized queries allow the moving of user data out of a string to be interpreted. Additionally, Criteria API [8] and similar APIs move away from the concept of command strings to be created and interpreted. Enforcing language separation via a static type system. [9] Validating or "sanitizing" input, such as whitelisting known good values ...
An example layout of a call stack. The subroutine DrawLine has been called by DrawSquare.Note that the stack is growing upwards in this diagram. Return-oriented programming is an advanced version of a stack smashing attack.
A logic bomb is a piece of code intentionally inserted into a software system that will set off a malicious function when specified conditions are met. For example, a programmer may hide a piece of code that starts deleting files (such as a salary database trigger), should they ever be terminated from the company.