[tor-bugs] #19418 [Core Tor/Tor]: i2d_RSAPublicKey retval ignored in multiple callsites

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#19418: i2d_RSAPublicKey retval ignored in multiple callsites
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     Reporter:  asn           |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.2.9.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  tor-bug-bounty 029-proposed
Actual Points:                |  Parent ID:
       Points:  0.5           |   Reviewer:
      Sponsor:                |
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 Hello. Here follows a bug report by `Guido Vranken` received through the
 hackerone program.

 There are various places in the codebase where we don't check the retval
 of `i2d_RSA_PublicKey()` (or its callers). That function can fail in cases
 of OOM, and this is something we should be handling correctly. This is a
 similar case to #17686.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19418>
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