]> granicus.if.org Git - postgresql/commit
Require update permission for the large object written by lo_put().
authorTom Lane <tgl@sss.pgh.pa.us>
Mon, 7 Aug 2017 14:19:01 +0000 (10:19 -0400)
committerTom Lane <tgl@sss.pgh.pa.us>
Mon, 7 Aug 2017 14:19:22 +0000 (10:19 -0400)
commitf1cda6d6cbb2b551331802cab57957fa5307cf2c
tree7da145bc52d84c8413028bb7a5a2f56b7476359e
parentb6e39ca92eeee4e5fa0e83ce3e04dad82559983f
Require update permission for the large object written by lo_put().

lo_put() surely should require UPDATE permission, the same as lowrite(),
but it failed to check for that, as reported by Chapman Flack.  Oversight
in commit c50b7c09d; backpatch to 9.4 where that was introduced.

Tom Lane and Michael Paquier

Security: CVE-2017-7548
src/backend/libpq/be-fsstubs.c
src/test/regress/expected/privileges.out
src/test/regress/sql/privileges.sql