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From 85bdcd7c92fe7ff133bbc4e10a65c91810f88755 Mon Sep 17 00:00:00 2001
From: Damien Miller <djm@mindrot.org>
Date: Wed, 13 Apr 2016 10:39:57 +1000
Subject: [PATCH] ignore PAM environment vars when UseLogin=yes
If PAM is configured to read user-specified environment variables
and UseLogin=yes in sshd_config, then a hostile local user may
attack /bin/login via LD_PRELOAD or similar environment variables
set via PAM.
CVE-2015-8325, found by Shayan Sadigh, via Colin Watson
Upstream-Status: Backport
CVE: CVE-2015-8325
Signed-off-by: Armin Kuster <akuster@mvista.com>
---
session.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: openssh-7.1p2/session.c
===================================================================
--- openssh-7.1p2.orig/session.c
+++ openssh-7.1p2/session.c
@@ -1315,7 +1315,7 @@ do_setup_env(Session *s, const char *she
* Pull in any environment variables that may have
* been set by PAM.
*/
- if (options.use_pam) {
+ if (options.use_pam && !options.use_login) {
char **p;
p = fetch_pam_child_environment();
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