Fix priv checks for ALTER <object> DEPENDS ON EXTENSION
Marking an object as dependant on an extension did not have any
privilege check whatsoever; this allowed any user to mark objects as
droppable by anyone able to DROP EXTENSION, which could be used to cause
system-wide havoc. Disallow by checking that the calling user owns the
mentioned object.
(No constraints are placed on the extension.)
Security: CVE-2020-1720
Reported-by: Tom Lane
Discussion: 31605.1566429043@sss.pgh.pa.us
Branch
------
master
Details
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https://git.postgresql.org/pg/commitdiff/b048f558dd7c26a0c630a2cff29d3d8981eaf6b9
Modified Files
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src/backend/commands/alter.c | 11 +++++++++++
1 file changed, 11 insertions(+)
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