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Adobe Patches Flash Zero-Day Used in South Korean Attacks

Critical flaw is one of two critical use-after-free vulnerabilities in Flash fixed today by the software firm.

Adobe issued its planned security update today for a previously unknown vulnerability in Flash Player that was exploited in targeted attacks against South Korean individuals. The software firm last week promised to patch the critical use-after-free bug, which was discovered and reported by South Korea's Computer Emergency Response Team.

The attacks, believed to be the handiwork of a state-sponsored campaign by North Korea, inserted malicious Flash content inside Microsoft Office documents emailed to the victims. The vulnerability (CVE-2018-4878) allows remote code execution.

Adobe in its Flash update also patched a second critical use-after-free flaw in Flash, CVE-2018-4877, which also allows an attacker to remotely execute code on the victim's machine.

For details on the security update, see Adobe's advisory here.

 

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