Samsung Internet Browser TypedArray Use-After-Free Remote Code Execution Vulnerability

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Samsung Internet Browser. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the handling of TypedArray objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code under the context of the current process.

Additional Details

Patched with Samsung Internet v. 6.4.0.15

Disclosure Timeline

• 2017-11-05 - Vulnerability reported to vendor
• 2018-06-07 - Coordinated public release of advisory
• 2018-06-07 - Advisory Updated

Credit

Tencent Keen Security Lab

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