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Fix bug in SET SESSION AUTHORIZATION that allows unprivileged users to crash

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the server, if it has been compiled with Asserts enabled (CVE-2006-0553).
Thanks to Akio Ishida for reporting this problem.
This commit is contained in:
Tom Lane
2006-02-12 22:33:14 +00:00
parent 9bb401cd73
commit df2c740c94
4 changed files with 21 additions and 10 deletions
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6
src/backend/commands/variable.c
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@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/variable.c,v 1.105.4.2 2005/08/08 23:39:14 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/variable.c,v 1.105.4.3 2006/02/12 22:33:14 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -619,7 +619,9 @@ assign_client_encoding(const char *value, bool doit, GucSource source)
* by the numeric userid, followed by a comma, followed by the user name.
* This cannot be confused with a plain user name because of the NAMEDATALEN
* limit on names, so we can tell whether we're being passed an initial
* username or a saved/restored value.
* username or a saved/restored value. (NOTE: we rely on guc.c to have
* properly truncated any incoming value, but not to truncate already-stored
* values. See GUC_IS_NAME processing.)
*/
extern char *session_authorization_string; /* in guc.c */