A recently fixed vulnerability in WhatsApp allowed attackers to spread spyware to mobile devices with just a phone call.
The attacker exploited a vulnerability known as buffer overflow, a type of exploit that’s existed for decades.
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Earlier this week, it was reported that a vulnerability in Facebook’s popular WhatsApp messaging service made it possible for attackers to spread spyware to smartphones via phone calls made through the app.
To do so, hackers exploited what is known as a buffer overflow vulnerability within WhatsApp, which the company said it quickly fixed and was first reported by The Financial Times. A buffer overflow is exactly as its name implies; it’s an issue that can occur when an app is flooded with more data than it can store in its buffer, or temporary storage space.
“A buffer overflow occurs when a programming error allows more data to be written to a given area of memory than can actually be stored there,” Rik Ferguson, vice president of security research at security software firm Trend Micro, told Business Insider via email. “The extra data flows into adjacent storage, corrupting or overwriting the data previously held …read more
Source:: Businessinsider – Technology