Zero-day vulnerability in Google Chrome

Use-after-free
CVE-2019-5786

The vulnerability in Google Chrome was used in a targeted attack along with another zero-day in Microsoft Windows.

The initial attack was detected in late February.

Vulnerability details

Advisory: SB2019030405 - Remote code execution in Google Chrome

Vulnerable component: Google Chrome

CVE-ID: CVE-2019-5786

CVSSv3 score: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-416 - Use After Free

Description:

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in FileReader. A remote attacker can trick the victim into opening a specially crafted file with Google Chrome, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Note: the vulnerability is being exploited in the wild.

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