From 7e8e195c6ada1ec3e6ec08b6382e0a2b93d52a72 Mon Sep 17 00:00:00 2001
From: "danila.leontiev" <danila.leontiev@rosalab.ru>
Date: Wed, 23 Jul 2014 13:11:37 +0400
Subject: [PATCH] Security fix

---
 107.patch               | 33 +++++++++++++++++++++++++++++++++
 pam-CVE-2014-2583.patch | 33 +++++++++++++++++++++++++++++++++
 pam.spec                |  2 ++
 3 files changed, 68 insertions(+)
 create mode 100644 107.patch
 create mode 100644 pam-CVE-2014-2583.patch

diff --git a/107.patch b/107.patch
new file mode 100644
index 0000000..a5c3221
--- /dev/null
+++ b/107.patch
@@ -0,0 +1,33 @@
+
+diff --git a/modules/pam_timestamp/pam_timestamp.c b/modules/pam_timestamp/pam_timestamp.c
+index 5193733..b3f08b1 100644
+--- a/modules/pam_timestamp/pam_timestamp.c
++++ b/modules/pam_timestamp/pam_timestamp.c
+@@ -158,7 +158,7 @@ check_tty(const char *tty)
+ 		tty = strrchr(tty, '/') + 1;
+ 	}
+ 	/* Make sure the tty wasn't actually a directory (no basename). */
+-	if (strlen(tty) == 0) {
++	if (!strlen(tty) || !strcmp(tty, ".") || !strcmp(tty, "..")) {
+ 		return NULL;
+ 	}
+ 	return tty;
+@@ -243,6 +243,17 @@ get_ruser(pam_handle_t *pamh, char *ruserbuf, size_t ruserbuflen)
+ 		if (pwd != NULL) {
+ 			ruser = pwd->pw_name;
+ 		}
++	} else {
++		/*
++		 * This ruser is used by format_timestamp_name as a component
++		 * of constructed timestamp pathname, so ".", "..", and '/'
++		 * are disallowed to avoid potential path traversal issues.
++		 */
++		if (!strcmp(ruser, ".") ||
++		    !strcmp(ruser, "..") ||
++		    strchr(ruser, '/')) {
++			ruser = NULL;
++		}
+ 	}
+ 	if (ruser == NULL || strlen(ruser) >= ruserbuflen) {
+ 		*ruserbuf = '\0';
+
diff --git a/pam-CVE-2014-2583.patch b/pam-CVE-2014-2583.patch
new file mode 100644
index 0000000..a5c3221
--- /dev/null
+++ b/pam-CVE-2014-2583.patch
@@ -0,0 +1,33 @@
+
+diff --git a/modules/pam_timestamp/pam_timestamp.c b/modules/pam_timestamp/pam_timestamp.c
+index 5193733..b3f08b1 100644
+--- a/modules/pam_timestamp/pam_timestamp.c
++++ b/modules/pam_timestamp/pam_timestamp.c
+@@ -158,7 +158,7 @@ check_tty(const char *tty)
+ 		tty = strrchr(tty, '/') + 1;
+ 	}
+ 	/* Make sure the tty wasn't actually a directory (no basename). */
+-	if (strlen(tty) == 0) {
++	if (!strlen(tty) || !strcmp(tty, ".") || !strcmp(tty, "..")) {
+ 		return NULL;
+ 	}
+ 	return tty;
+@@ -243,6 +243,17 @@ get_ruser(pam_handle_t *pamh, char *ruserbuf, size_t ruserbuflen)
+ 		if (pwd != NULL) {
+ 			ruser = pwd->pw_name;
+ 		}
++	} else {
++		/*
++		 * This ruser is used by format_timestamp_name as a component
++		 * of constructed timestamp pathname, so ".", "..", and '/'
++		 * are disallowed to avoid potential path traversal issues.
++		 */
++		if (!strcmp(ruser, ".") ||
++		    !strcmp(ruser, "..") ||
++		    strchr(ruser, '/')) {
++			ruser = NULL;
++		}
+ 	}
+ 	if (ruser == NULL || strlen(ruser) >= ruserbuflen) {
+ 		*ruserbuf = '\0';
+
diff --git a/pam.spec b/pam.spec
index 8516029..5e80a85 100644
--- a/pam.spec
+++ b/pam.spec
@@ -71,6 +71,7 @@ Patch702:	Linux-PAM-1.1.4-add-now-missing-nis-constant.patch
 
 # (akdengi> add user to default group users which need for Samba
 Patch801:	Linux-PAM-1.1.4-group_add_users.patch
+Patch802:	pam-CVE-2014-2583.patch
 
 BuildRequires:	selinux-devel >= 2.1.6-7
 BuildRequires:	bison
@@ -175,6 +176,7 @@ mv pam-redhat-%{pam_redhat_version}/* modules
 %patch701 -p1 -b .nopermsd
 %patch702 -p1 -b .nis_const~
 %patch801 -p1 -b .group_users
+%patch802 -p1
 
 # 08/08/2008 - vdanen - make pam provide pam_unix until we can work out all the issues in pam_tcb; this
 # just makes things easier but is not meant to be a permanent solution