File pam_slurm_adopt-send_user_msg-don-t-copy-undefi... of Package slurm.13564

Overview Repositories Revisions Requests Users Attributes Meta

File pam_slurm_adopt-send_user_msg-don-t-copy-undefined-d.patch of Package slurm.13564 (Revision 71303e3f881ccabba0651ddaf88c8f28)

Currently displaying revision 71303e3f881ccabba0651ddaf88c8f28 , Show latest

From a5d4481c05e2afa1ff1920446663e66c48ef9277 Mon Sep 17 00:00:00 2001
From: Matthias Gerstner <matthias.gerstner@suse.de>
Date: Wed, 5 Dec 2018 14:08:07 +0100
Subject: [PATCH 2/3] pam_slurm_adopt: send_user_msg: don't copy undefined data
 into message

Using memcpy, an amount of undefined data from the stack will be copied
into the target buffer. While pam_conv probably doesn't evalute the
extra data it still unclean to do that. It could lead up to an
information leak somewhen.

Signed-off-by: Christian Goll <cgoll@suse.de>
---
 contribs/pam_slurm_adopt/helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contribs/pam_slurm_adopt/helper.c b/contribs/pam_slurm_adopt/helper.c
index 9c3e202a87..1bac0a0fcf 100644
--- a/contribs/pam_slurm_adopt/helper.c
+++ b/contribs/pam_slurm_adopt/helper.c
@@ -128,7 +128,7 @@ send_user_msg(pam_handle_t *pamh, const char *mesg)
 
 	/*  Construct msg to send to app.
 	 */
-	memcpy(str, mesg, sizeof(str));
+	strncpy(str, mesg, sizeof(str));
 	msg[0].msg_style = PAM_ERROR_MSG;
 	msg[0].msg = str;
 	pmsg[0] = &msg[0];
-- 
2.16.4

Places

File pam_slurm_adopt-send_user_msg-don-t-copy-undefined-d.patch of Package slurm.13564 (Revision 71303e3f881ccabba0651ddaf88c8f28)

Places