oss-sec mailing list archives

Re: memory safety bugs in bc


From: Hanno Böck <hanno () hboeck de>
Date: Thu, 29 Nov 2018 23:12:55 +0100

On Thu, 29 Nov 2018 11:40:54 -0500
Daniel Kahn Gillmor <dkg () fifthhorseman net> wrote:

I haven't evaluated how many of those systems might pass untrusted
input to bc (maybe none!), but this is hardly "standalone".

I think that's not what Marcus meant.

These packages on debian likely call bc via the commandline.

The idea here is that "mild" memory safety violations (invalid reads,
nullptr) don't get security treatment if they're in a standalone tool,
yet they do if they're in a library, which may have larger implications
in more complex apps.
I can somewhat understand that. (And decided for myself not to care
too much about CVEs anyway. Relevant for me is primarily that I shared
the info, so others can decide how they act on it.)

-- 
Hanno Böck
https://hboeck.de/

mail/jabber: hanno () hboeck de
GPG: FE73757FA60E4E21B937579FA5880072BBB51E42


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