[gnutls-devel] GnuTLS | apparent bug in _gnutls_x509_der_encode with fix/workaround that shouldn't work (#1078)

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CurtisVillamizar commented:


I created a patch file for lib/x509/common.c to provide more info.  Here is the patch first.
[patch-3-common.c](/uploads/f9534a181ff1dddeac3090a50b0745b2/patch-3-common.c)
The file asn1_src_2 (part of the debugging) is next.
[asn1_src_2](/uploads/be877a392ce0dae5fa7417c1be4491a2/asn1_src_2)
The beginning of the files asn1_src_1 and asn1_src_2 are identical so apparently there is no inplace overwrite.  The last 28 lines of asn1_src_2 indicate that asn1_der_coding when fed a NULL buffer and size=0 does not think anything but the tbsCertificate.validity is valid.

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