postgres

History

Noah Misch 01e8182c73 Replace last PushOverrideSearchPath() call with set_config_option(). The two methods don't cooperate, so set_config_option("search_path", ...) has been ineffective under non-empty overrideStack. This defect enabled an attacker having database-level CREATE privilege to execute arbitrary code as the bootstrap superuser. While that particular attack requires v13+ for the trusted extension attribute, other attacks are feasible in all supported versions. Standardize on the combination of NewGUCNestLevel() and set_config_option("search_path", ...). It is newer than PushOverrideSearchPath(), more-prevalent, and has no known disadvantages. The "override" mechanism remains for now, for compatibility with out-of-tree code. Users should update such code, which likely suffers from the same sort of vulnerability closed here. Back-patch to v11 (all supported versions). Alexander Lakhin. Reported by Alexander Lakhin. Security: CVE-2023-2454		2 years ago
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data	…
expected	Replace last PushOverrideSearchPath() call with set_config_option().	2 years ago
sql	Replace last PushOverrideSearchPath() call with set_config_option().	2 years ago
.gitignore	…
Makefile	Replace last PushOverrideSearchPath() call with set_config_option().	2 years ago
seg--1.0--1.1.sql	Make contrib modules' installation scripts more secure.	5 years ago
seg--1.1--1.2.sql	…
seg--1.1.sql	…
seg--1.2--1.3.sql	Make contrib modules' installation scripts more secure.	5 years ago
seg--1.3--1.4.sql	Remove deprecated containment operators for contrib types.	5 years ago
seg-validate.pl	Remove extraneous newlines added by perl copyright patch	4 years ago
seg.c	Fix contrib/seg to be more wary of long input numbers.	3 years ago
seg.control	Remove deprecated containment operators for contrib types.	5 years ago
segdata.h	…
segparse.y	Fix contrib/seg to be more wary of long input numbers.	3 years ago
segscan.l	…
sort-segments.pl	Remove extraneous newlines added by perl copyright patch	4 years ago