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authorDavid Kalnischkies <david@kalnischkies.de>2019-01-23 20:50:29 +0100
committerDavid Kalnischkies <david@kalnischkies.de>2019-01-23 22:48:16 +0100
commite2965b0b6bdd68ffcad0e06d11755412a7e16e50 (patch)
tree24bac675db43d9e013f2e9481ca4599a350e3f34 /apt-pkg/init.h
parent3734cceb44b02ca4d5ee3c6f5cbfe1e12f17cffb (diff)
Fail on non-signature lines in Release.gpg
The exploit for CVE-2019-3462 uses the fact that a Release.gpg file can contain additional content beside the expected detached signature(s). We were passing the file unchecked to gpgv which ignores these extras without complains, so we reuse the same line-reading implementation we use for InRelease splitting to detect if a Release.gpg file contains unexpected data and fail in this case given that we in the previous commit we established that we fail in the similar InRelease case now.
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