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dirmngr,gpgsm: Return NULL on fail

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* dirmngr/ldapserver.c (ldapserver_parse_one): Set SERVER to NULL.
* sm/gpgsm.c (parse_keyserver_line): Ditto.
--

Reported-by: Joshua Rogers <git@internot.info>

  "If something inside the ldapserver_parse_one function failed,
   'server' would be freed, then returned, leading to a
   use-after-free.  This code is likely copied from sm/gpgsm.c, which
   was also susceptible to this bug."

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2014-12-22 12:16:46 +01:00
parent bdc8efbdd1
commit abd5f6752d
2 changed files with 2 additions and 0 deletions
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1
dirmngr/ldapserver.c
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@ -125,6 +125,7 @@ ldapserver_parse_one (char *line,
{
log_info (_("%s:%u: skipping this line\n"), filename, lineno);
ldapserver_list_free (server);
server = NULL;
}
return server;

1
sm/gpgsm.c
View File

@ -862,6 +862,7 @@ parse_keyserver_line (char *line,
{
log_info (_("%s:%u: skipping this line\n"), filename, lineno);
keyserver_list_free (server);
server = NULL;
}
return server;