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I noticed that Hex-Ray have been keeping reward to people who find "security vulnerabilities" of IDA-Pro.:

So here is my question, how come a decompiler can have "security vulnerabilities"? And more importantly, is there any real-world example to attack decompilers or disassemblers? Or can I perform certain kind of "malware evading attacks" by abusing the decompiler bugs?

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    How about a vulnerability that, given a suitably crafted malware, results in execution of code in the malware being studied ?
    – Ian Cook
    Oct 14, 2019 at 7:55
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    For examples, see hex-rays.com/vulnfix.shtml
    – julian ♦
    Oct 14, 2019 at 7:57

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I guess that you won't be happy if, while analyzing a malware, a certain pattern in the executable binary makes Hex-rays connect to an evil server somewhere in the World with your account and download a payload on your system...

And, yes, there have been some examples where security analysis software have been pinpointed with security threats. The last I have in mind are on Ghidra:

See also here.

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