[gnutls-devel] libtasn1 | Potential Buffer Overrun in asn1_der_decoding2() (#50)

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Thu Mar 7 15:27:07 CET 2024




Simon Josefsson commented: https://gitlab.com/gnutls/libtasn1/-/issues/50#note_1805772076

DER data is not NUL terminated, it has its own internal length encoding but generally that data cannot be trusted so you always have to pass around a DER-blob together with its known allocated memory size in C.

I didn't analyze the error further, more thinking is welcome.

Btw, I have added a CI/CD pipeline job to run coverity checks and it triggered a bunch of warnings that we should go through.  Probably they are quite similar to the errors you got.

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