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import CS shadow-utils-4.6-19.el8

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This commit is contained in:
eabdullin 2023-09-27 14:12:44 +00:00
parent 6b83065613
commit 23e7375d61
5 changed files with 297 additions and 28 deletions
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11
SOURCES/shadow-4.6-gpasswd-fix-password-leak.patch Normal file
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@ -0,0 +1,11 @@
diff -up shadow-4.9/src/gpasswd.c.gpasswd-fix-password-leak shadow-4.9/src/gpasswd.c
--- shadow-4.9/src/gpasswd.c.gpasswd-fix-password-leak 2023-07-12 09:38:32.062546006 +0200
+++ shadow-4.9/src/gpasswd.c 2023-07-12 09:42:33.194154548 +0200
@@ -857,6 +857,7 @@ static void change_passwd (struct group
strzero (cp);
cp = getpass (_("Re-enter new password: "));
if (NULL == cp) {
+ memzero (pass, sizeof pass);
exit (1);
}

59
SOURCES/shadow-4.3.1-selinux-perms.patch → SOURCES/shadow-4.6-selinux-perms.patch
View File

@ -1,7 +1,6 @@
Index: shadow-4.5/src/chgpasswd.c
===================================================================
--- shadow-4.5.orig/src/chgpasswd.c
+++ shadow-4.5/src/chgpasswd.c
diff -up shadow-4.8/src/chgpasswd.c.selinux-perms shadow-4.8/src/chgpasswd.c
--- shadow-4.8/src/chgpasswd.c.selinux-perms 2019-12-01 18:02:43.000000000 +0100
+++ shadow-4.8/src/chgpasswd.c 2020-01-13 10:21:44.558107260 +0100
@@ -39,6 +39,13 @@
#include <pwd.h>
#include <stdio.h>
@ -16,7 +15,7 @@ Index: shadow-4.5/src/chgpasswd.c
#ifdef ACCT_TOOLS_SETUID
#ifdef USE_PAM
#include "pam_defs.h"
@@ -76,6 +83,9 @@ static bool sgr_locked = false;
@@ -80,6 +87,9 @@ static bool sgr_locked = false;
#endif
static bool gr_locked = false;
@ -26,7 +25,7 @@ Index: shadow-4.5/src/chgpasswd.c
/* local function prototypes */
static void fail_exit (int code);
static /*@noreturn@*/void usage (int status);
@@ -300,6 +310,63 @@ static void check_perms (void)
@@ -334,6 +344,63 @@ static void check_perms (void)
#endif /* ACCT_TOOLS_SETUID */
}
@ -90,7 +89,7 @@ Index: shadow-4.5/src/chgpasswd.c
/*
* open_files - lock and open the group databases
*/
@@ -393,6 +460,7 @@ int main (int argc, char **argv)
@@ -427,6 +494,7 @@ int main (int argc, char **argv)
const struct group *gr;
struct group newgr;
@ -98,7 +97,17 @@ Index: shadow-4.5/src/chgpasswd.c
int errors = 0;
int line = 0;
@@ -408,8 +476,33 @@ int main (int argc, char **argv)
@@ -436,12 +504,37 @@ int main (int argc, char **argv)
(void) bindtextdomain (PACKAGE, LOCALEDIR);
(void) textdomain (PACKAGE);
+#ifdef WITH_SELINUX
+ selinux_check_root ();
+#endif
+
process_root_flag ("-R", argc, argv);
process_flags (argc, argv);
OPENLOG ("chgpasswd");
@ -125,13 +134,7 @@ Index: shadow-4.5/src/chgpasswd.c
+
check_perms ();
+#ifdef WITH_SELINUX
+ selinux_check_root ();
+#endif
+
#ifdef SHADOWGRP
is_shadow_grp = sgr_file_present ();
#endif
@@ -536,6 +629,15 @@ int main (int argc, char **argv)
newgr.gr_passwd = cp;
}
@ -148,10 +151,9 @@ Index: shadow-4.5/src/chgpasswd.c
/*
* The updated group file entry is then put back and will
* be written to the group file later, after all the
Index: shadow-4.5/src/chpasswd.c
===================================================================
--- shadow-4.5.orig/src/chpasswd.c
+++ shadow-4.5/src/chpasswd.c
diff -up shadow-4.8/src/chpasswd.c.selinux-perms shadow-4.8/src/chpasswd.c
--- shadow-4.8/src/chpasswd.c.selinux-perms 2019-12-01 18:02:43.000000000 +0100
+++ shadow-4.8/src/chpasswd.c 2020-01-13 10:21:44.558107260 +0100
@@ -39,6 +39,13 @@
#include <pwd.h>
#include <stdio.h>
@ -166,7 +168,7 @@ Index: shadow-4.5/src/chpasswd.c
#ifdef USE_PAM
#include "pam_defs.h"
#endif /* USE_PAM */
@@ -297,6 +304,63 @@ static void check_perms (void)
@@ -332,6 +339,63 @@ static void check_perms (void)
#endif /* USE_PAM */
}
@ -230,7 +232,18 @@ Index: shadow-4.5/src/chpasswd.c
/*
* open_files - lock and open the password databases
*/
@@ -405,8 +469,16 @@ int main (int argc, char **argv)
@@ -428,6 +492,10 @@ int main (int argc, char **argv)
(void) bindtextdomain (PACKAGE, LOCALEDIR);
(void) textdomain (PACKAGE);
+#ifdef WITH_SELINUX
+ selinux_check_root ();
+#endif
+
process_root_flag ("-R", argc, argv);
process_flags (argc, argv);
@@ -440,6 +508,10 @@ int main (int argc, char **argv)
OPENLOG ("chpasswd");
@ -240,13 +253,7 @@ Index: shadow-4.5/src/chpasswd.c
+
check_perms ();
+#ifdef WITH_SELINUX
+ selinux_check_root ();
+#endif
+
#ifdef USE_PAM
if (!use_pam)
#endif /* USE_PAM */
@@ -566,6 +638,11 @@ int main (int argc, char **argv)
newpw.pw_passwd = cp;
}

214
SOURCES/shadow-4.6-skip-over-reserved-ids.patch Normal file
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@ -0,0 +1,214 @@
From baae5b4a06c905d9f52ed1f922a0d7d0625d11cf Mon Sep 17 00:00:00 2001
From: Martin Kletzander <nert.pinx@gmail.com>
Date: Wed, 1 Feb 2023 15:36:41 +0100
Subject: [PATCH] find_new_[gu]id(): Skip over IDs that are reserved for legacy
reasons
Some programs don't support `(uint16_t) -1` or `(uint32_t) -1` as user
or group IDs. This is because `-1` is used as an error code or as an
unspecified ID, e.g. in `chown(2)` parameters, and in the past, `gid_t`
and `uid_t` have changed width. For legacy reasons, those values have
been kept reserved in programs today (for example systemd does this; see
the documentation in the link below).
This should not be confused with catching overflow in the ID values,
since that is already caught by our ERANGE checks. This is about not
using reserved values that have been reserved for legacy reasons.
Link: <https://systemd.io/UIDS-GIDS/>
Reviewed-by: Alejandro Colomar <alx@kernel.org>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
---
libmisc/find_new_gid.c | 38 ++++++++++++++++++++++++++++----------
libmisc/find_new_uid.c | 38 ++++++++++++++++++++++++++++----------
2 files changed, 56 insertions(+), 20 deletions(-)
diff --git a/libmisc/find_new_gid.c b/libmisc/find_new_gid.c
index 70ba95a2..da1d8d55 100644
--- a/libmisc/find_new_gid.c
+++ b/libmisc/find_new_gid.c
@@ -98,6 +98,7 @@ static int get_ranges (bool sys_group, gid_t *min_id, gid_t *max_id,
*
* On success, return 0
* If the ID is in use, return EEXIST
+ * If the ID might clash with -1, return EINVAL
* If the ID is outside the range, return ERANGE
* In other cases, return errno from getgrgid()
*/
@@ -111,6 +112,11 @@ static int check_gid (const gid_t gid,
return ERANGE;
}
+ /* Check for compatibility with 16b and 32b gid_t error codes */
+ if (gid == UINT16_MAX || gid == UINT32_MAX) {
+ return EINVAL;
+ }
+
/*
* Check whether we already detected this GID
* using the gr_next() loop
@@ -182,10 +188,10 @@ int find_new_gid (bool sys_group,
* gr_locate_gid() found the GID in an as-yet uncommitted
* entry. We'll proceed below and auto-set a GID.
*/
- } else if (result == EEXIST || result == ERANGE) {
+ } else if (result == EEXIST || result == ERANGE || result == EINVAL) {
/*
* Continue on below. At this time, we won't
- * treat these two cases differently.
+ * treat these three cases differently.
*/
} else {
/*
@@ -296,8 +302,11 @@ int find_new_gid (bool sys_group,
*gid = id;
free (used_gids);
return 0;
- } else if (result == EEXIST) {
- /* This GID is in use, we'll continue to the next */
+ } else if (result == EEXIST || result == EINVAL) {
+ /*
+ * This GID is in use or unusable, we'll
+ * continue to the next.
+ */
} else {
/*
* An unexpected error occurred.
@@ -339,8 +348,11 @@ int find_new_gid (bool sys_group,
*gid = id;
free (used_gids);
return 0;
- } else if (result == EEXIST) {
- /* This GID is in use, we'll continue to the next */
+ } else if (result == EEXIST || result == EINVAL) {
+ /*
+ * This GID is in use or unusable, we'll
+ * continue to the next.
+ */
} else {
/*
* An unexpected error occurred.
@@ -399,8 +411,11 @@ int find_new_gid (bool sys_group,
*gid = id;
free (used_gids);
return 0;
- } else if (result == EEXIST) {
- /* This GID is in use, we'll continue to the next */
+ } else if (result == EEXIST || result == EINVAL) {
+ /*
+ * This GID is in use or unusable, we'll
+ * continue to the next.
+ */
} else {
/*
* An unexpected error occurred.
@@ -442,8 +457,11 @@ int find_new_gid (bool sys_group,
*gid = id;
free (used_gids);
return 0;
- } else if (result == EEXIST) {
- /* This GID is in use, we'll continue to the next */
+ } else if (result == EEXIST || result == EINVAL) {
+ /*
+ * This GID is in use or unusable, we'll
+ * continue to the next.
+ */
} else {
/*
* An unexpected error occurred.
diff --git a/libmisc/find_new_uid.c b/libmisc/find_new_uid.c
index 6b71dfe5..09885236 100644
--- a/libmisc/find_new_uid.c
+++ b/libmisc/find_new_uid.c
@@ -98,6 +98,7 @@ static int get_ranges (bool sys_user, uid_t *min_id, uid_t *max_id,
*
* On success, return 0
* If the ID is in use, return EEXIST
+ * If the ID might clash with -1, return EINVAL
* If the ID is outside the range, return ERANGE
* In other cases, return errno from getpwuid()
*/
@@ -111,6 +112,11 @@ static int check_uid(const uid_t uid,
return ERANGE;
}
+ /* Check for compatibility with 16b and 32b uid_t error codes */
+ if (uid == UINT16_MAX || uid == UINT32_MAX) {
+ return EINVAL;
+ }
+
/*
* Check whether we already detected this UID
* using the pw_next() loop
@@ -182,10 +188,10 @@ int find_new_uid(bool sys_user,
* pw_locate_uid() found the UID in an as-yet uncommitted
* entry. We'll proceed below and auto-set an UID.
*/
- } else if (result == EEXIST || result == ERANGE) {
+ } else if (result == EEXIST || result == ERANGE || result == EINVAL) {
/*
* Continue on below. At this time, we won't
- * treat these two cases differently.
+ * treat these three cases differently.
*/
} else {
/*
@@ -296,8 +302,11 @@ int find_new_uid(bool sys_user,
*uid = id;
free (used_uids);
return 0;
- } else if (result == EEXIST) {
- /* This UID is in use, we'll continue to the next */
+ } else if (result == EEXIST || result == EINVAL) {
+ /*
+ * This GID is in use or unusable, we'll
+ * continue to the next.
+ */
} else {
/*
* An unexpected error occurred.
@@ -339,8 +348,11 @@ int find_new_uid(bool sys_user,
*uid = id;
free (used_uids);
return 0;
- } else if (result == EEXIST) {
- /* This UID is in use, we'll continue to the next */
+ } else if (result == EEXIST || result == EINVAL) {
+ /*
+ * This GID is in use or unusable, we'll
+ * continue to the next.
+ */
} else {
/*
* An unexpected error occurred.
@@ -399,8 +411,11 @@ int find_new_uid(bool sys_user,
*uid = id;
free (used_uids);
return 0;
- } else if (result == EEXIST) {
- /* This UID is in use, we'll continue to the next */
+ } else if (result == EEXIST || result == EINVAL) {
+ /*
+ * This GID is in use or unusable, we'll
+ * continue to the next.
+ */
} else {
/*
* An unexpected error occurred.
@@ -442,8 +457,11 @@ int find_new_uid(bool sys_user,
*uid = id;
free (used_uids);
return 0;
- } else if (result == EEXIST) {
- /* This UID is in use, we'll continue to the next */
+ } else if (result == EEXIST || result == EINVAL) {
+ /*
+ * This GID is in use or unusable, we'll
+ * continue to the next.
+ */
} else {
/*
* An unexpected error occurred.
--
2.40.1

20
SOURCES/shadow-4.6-useradd-check-if-subid-range-exists.patch Normal file
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@ -0,0 +1,20 @@
diff -up shadow-4.6/src/useradd.c.useradd-check-if-subid-range-exists shadow-4.6/src/useradd.c
--- shadow-4.6/src/useradd.c.useradd-check-if-subid-range-exists 2023-05-17 10:39:41.457826153 +0200
+++ shadow-4.6/src/useradd.c 2023-05-17 10:41:30.937036772 +0200
@@ -2019,14 +2019,14 @@ static void usr_update (void)
fail_exit (E_PW_UPDATE);
}
#ifdef ENABLE_SUBIDS
- if (is_sub_uid &&
+ if (is_sub_uid && !local_sub_uid_assigned(user_name) &&
(sub_uid_add(user_name, sub_uid_start, sub_uid_count) == 0)) {
fprintf (stderr,
_("%s: failed to prepare the new %s entry\n"),
Prog, sub_uid_dbname ());
fail_exit (E_SUB_UID_UPDATE);
}
- if (is_sub_gid &&
+ if (is_sub_gid && !local_sub_gid_assigned(user_name) &&
(sub_gid_add(user_name, sub_gid_start, sub_gid_count) == 0)) {
fprintf (stderr,
_("%s: failed to prepare the new %s entry\n"),

21
SPECS/shadow-utils.spec
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@ -1,7 +1,7 @@
Summary: Utilities for managing accounts and shadow password files
Name: shadow-utils
Version: 4.6
Release: 17%{?dist}
Release: 19%{?dist}
Epoch: 2
URL: http://pkg-shadow.alioth.debian.org/
Source0: https://github.com/shadow-maint/shadow/releases/download/v%{version}/shadow-%{version}.tar.xz
@ -29,7 +29,7 @@ Patch21: shadow-4.6-move-home.patch
Patch22: shadow-4.6-audit-update.patch
Patch23: shadow-4.5-usermod-unlock.patch
Patch24: shadow-4.2.1-no-lock-dos.patch
Patch28: shadow-4.3.1-selinux-perms.patch
Patch28: shadow-4.6-selinux-perms.patch
Patch29: shadow-4.2.1-null-tm.patch
Patch31: shadow-4.6-getenforce.patch
Patch32: shadow-4.5-crypt_h.patch
@ -94,6 +94,12 @@ Patch62: shadow-4.6-getsubids.patch
Patch63: shadow-4.6-groupdel-fix-sigsegv-when-passwd-does-not-exist.patch
# https://github.com/shadow-maint/shadow/commit/3ec32f9975f262073f8fbdecd2bfaee4a1d3db48
Patch64: shadow-4.9-subordinateio-compare-owner-ID.patch
# https://github.com/shadow-maint/shadow/commit/e0524e813a3bae2891b33a66f35876841c11cee7
Patch65: shadow-4.6-useradd-check-if-subid-range-exists.patch
# https://github.com/shadow-maint/shadow/commit/baae5b4a06c905d9f52ed1f922a0d7d0625d11cf
Patch66: shadow-4.6-skip-over-reserved-ids.patch
# https://github.com/shadow-maint/shadow/commit/65c88a43a23c2391dcc90c0abda3e839e9c57904
Patch67: shadow-4.6-gpasswd-fix-password-leak.patch
License: BSD and GPLv2+
Group: System Environment/Base
@ -194,6 +200,9 @@ Development files for shadow-utils-subid.
%patch62 -p1 -b .getsubids
%patch63 -p1 -b .groupdel-fix-sigsegv-when-passwd-does-not-exist
%patch64 -p1 -b .subordinateio-compare-owner-ID
%patch65 -p1 -b .useradd-check-if-subid-range-exists
%patch66 -p1 -b .skip-over-reserved-ids
%patch67 -p1 -b .gpasswd-fix-password-leak
iconv -f ISO88591 -t utf-8 doc/HOWTO > doc/HOWTO.utf8
cp -f doc/HOWTO.utf8 doc/HOWTO
@ -364,6 +373,14 @@ rm -f $RPM_BUILD_ROOT/%{_libdir}/libsubid.la
%{_libdir}/libsubid.so
%changelog
* Wed Jul 12 2023 Iker Pedrosa <ipedrosa@redhat.com> - 2:4.6-19
- gpasswd: fix password leak. Resolves: #2215947
* Wed May 17 2023 Iker Pedrosa <ipedrosa@redhat.com> - 2:4.6-18
- Update patch to close label to reset libselinux state. Resolves: #1984740
- useradd: check if subid range exists for user. Resolves: #2012929
- find_new_[gu]id: Skip over IDs that are reserved for legacy reasons. Resolves: #1994269
* Thu Jul 21 2022 Iker Pedrosa <ipedrosa@redhat.com> - 2:4.6-17
- subordinateio: also compare the owner ID. Resolves: #2093311
- Fix release sources