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Modules information (runtime.modinfo) cannot be stripped from final binary #41895

YuvalAvra opened this issue Oct 9, 2020 · 1 comment


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@YuvalAvra YuvalAvra commented Oct 9, 2020

What did you do?

Compiled a striped go binary.

$ go build -ldflags="-s -w" -trimpath

What did you expect to see?

Module information stripped from the binary.

What did you see instead?

Go includes module information in the binary in runtime.modinfo.

$ go version -m hello
hello: go1.14.2
	mod	(devel)	
	dep	v0.5.2	h1:X2ev0eStA3AbceY54o37/0PQ/UWqKEiiO2dKL5OPaFM=

In production environments, this kind of information can be used by attackers to target vulnerable dependencies. Consider allowing users to strip that information either through the current stripping flags or via a new flag.

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@YuvalAvra YuvalAvra commented Oct 9, 2020

Found a way to remove this information, use -linkshared. Closing.

@YuvalAvra YuvalAvra closed this Oct 9, 2020
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