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What, if any, is the difference between a software bug and a software vulnerability?
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Put simply, a bug is when the system isn't behaving as it's supposed to, whereas a vulnerability is a bug that manifests itself as an opportunity for exploitation. So while Apple's “text bomb” is a bug, Intel's “Meltdown” is a vulnerability, and therefore a more serious threat.
A security bug is specifically a bug that causes a vulnerability. A vulnerability is a weakness which can be exploited by a Threat Actor, such as an attacker, to perform unauthorized actions within a computer system.
Vulnerability is a subset of bug. A bug is any defect in a product. A vulnerability is bug that manifests as an opportunity for malicious use of the product. Vulnerabilities generally are not that clearly evident, but require ingenuity to be exploited.
A bug is a flaw or vulnerability in the software or hardware design that can be potentially exploited by the attackers. These security bugs can be used to exploit various vulnerabilities by compromising – user authentication, authorization of access rights and privileges, data confidentiality, and data integrity.
A bug is when a system isn't behaving as it's designed to behave.
A vulnerability is a way of abusing the system (most commonly in a security-related way) - whether that's due to a design fault or an implementation fault. In other words, something can have a vulnerability due to a defective design, even if the implementation of that design is perfect.
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Vulnerability is a subset of bug.
A bug is any defect in a product.
A vulnerability is bug that manifests as an opportunity for malicious use of the product. Vulnerabilities generally are not that clearly evident, but require ingenuity to be exploited.
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