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List:       oss-security
Subject:    Re: [oss-security] Using quilt on untrusted RPM spec files
From:       "Stuart D. Gathman" <stuart () gathman ! org>
Date:       2018-10-23 3:42:21
Message-ID: 1540266141.431.3 () mail ! gathman ! org
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On Thu, Oct 18, 2018 at 10:57 AM, Jakub Wilk <jwilk@jwilk.net> wrote:
> * Randy Barlow <randy@electronsweatshop.com>, 2018-09-27, 22:39:
>> In Fedora we have similar challenges. We've got a tool called 
>> fedora-review[0] that is maybe kinda similar to quilt.
> 
> Quilt is a tool to manage patch series, so maybe not that similar. :-)

mock can run quilt also

> 
>> It uses mock[1] to build the source RPM (and mock does this in a 
>> chroot to help with the problems you described)
> 
> If it's really just chroot, then I'm afraid that's not a sufficient 
> protection. One can easily escape the chroot with ptrace(2).

Doesn't that escape require root?  Or at least a ptraceable process 
(i.e. with the same uid) outside the chroot?

Not that I'd stake anything really important on current container 
security...  (And even VMs are vulnerable to the latest round of 
hardware bugs.)


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