`X509V3_EXT_print` can return value different from `1` if the X509
extension does not support printing to a buffer. Instead of failing with
an unrecoverable assertion - replace the relevant value in the hashmap
with a JS null value.
Fixes: https://hackerone.com/reports/746733
PR-URL: https://github.com/nodejs-private/node-private/pull/175
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Shelley Vohr <codebytere@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Fedor Indutny