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zdiPhoenhex & qwerty team (@_niklasb @qwertyoruiopz and @bkth_)ZDI-19-540
HistoryMay 30, 2019 - 12:00 a.m.

Apple Safari cfAttributedStringUnserialize Out-Of-Bounds Read Remote Code Execution Vulnerability

2019-05-3000:00:00
phoenhex & qwerty team (@_niklasb @qwertyoruiopz and @bkth_)
www.zerodayinitiative.com
13

EPSS

0.003

Percentile

71.6%

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Safari. 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 cfAttributedStringUnserialize method. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

EPSS

0.003

Percentile

71.6%