Age | Commit message (Collapse) | Author |
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Using a different user for calling methods is intended to protect us
from methods running amok (via remotely exploited bugs) by limiting what
can be done by them. By using root:root for the final directories and
just have the files in partial writeable by the methods we enhance this
in sofar as a method can't modify already verified data in its parent
directory anymore.
As a side effect, this also clears most of the problems you could have
if the final directories are shared without user-sharing or if these
directories disappear as they are now again root owned and only the
partial directories contain _apt owned files (usually none if apt isn't
running) and the directory itself is autocreated with the right
permissions.
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The configuration key Acquire::AllowInsecureRepositories controls if
apt allows loading of unsigned repositories at all.
The configuration Acquire::AllowDowngradeToInsecureRepositories
controls if a signed repository can ever become unsigned. This
should really never be needed but we provide it to avoid having
to mess around in /var/lib/apt/lists if there is a use-case for
this (which I can't think of right now).
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incorrect invalidating of unauthenticated data (CVE-2014-0488)
incorect verification of 304 reply (CVE-2014-0487)
incorrect verification of Acquire::Gzip indexes (CVE-2014-0489)
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