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- Add 0001-util-never-follow-symlinks-in-rm_rf_children.patch: fix

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CVE-2012-1174 (bnc#752281).

OBS-URL: https://build.opensuse.org/package/show/Base:System/systemd?expand=0&rev=260
This commit is contained in:
Frederic Crozat 2012-03-19 10:27:58 +00:00 committed by Git OBS Bridge
parent 1afd3235d3
commit c83a92ecbe
4 changed files with 46 additions and 0 deletions
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32
0001-util-never-follow-symlinks-in-rm_rf_children.patch Normal file
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@ -0,0 +1,32 @@
From 5ebff5337594d690b322078c512eb222d34aaa82 Mon Sep 17 00:00:00 2001
From: Michal Schmidt <mschmidt@redhat.com>
Date: Fri, 2 Mar 2012 10:39:10 +0100
Subject: [PATCH] util: never follow symlinks in rm_rf_children()
The function checks if the entry is a directory before recursing, but
there is a window between the check and the open, during which the
directory could be replaced with a symlink.
CVE-2012-1174
https://bugzilla.redhat.com/show_bug.cgi?id=803358
---
src/util.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/src/util.c b/src/util.c
index 20cbc2b..dfc1dc6 100644
--- a/src/util.c
+++ b/src/util.c
@@ -3593,7 +3593,8 @@ static int rm_rf_children(int fd, bool only_dirs, bool honour_sticky) {
if (is_dir) {
int subdir_fd;
- if ((subdir_fd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC)) < 0) {
+ subdir_fd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW);
+ if (subdir_fd < 0) {
if (ret == 0 && errno != ENOENT)
ret = -errno;
continue;
--
1.7.7

6
systemd-gtk.changes
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@ -1,3 +1,9 @@
-------------------------------------------------------------------
Mon Mar 19 10:11:23 UTC 2012 - fcrozat@suse.com
- Add 0001-util-never-follow-symlinks-in-rm_rf_children.patch: fix
CVE-2012-1174 (bnc#752281).
-------------------------------------------------------------------
Fri Mar 16 09:21:54 UTC 2012 - fcrozat@suse.com

6
systemd.changes
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@ -1,3 +1,9 @@
-------------------------------------------------------------------
Mon Mar 19 10:11:23 UTC 2012 - fcrozat@suse.com
- Add 0001-util-never-follow-symlinks-in-rm_rf_children.patch: fix
CVE-2012-1174 (bnc#752281).
-------------------------------------------------------------------
Fri Mar 16 09:21:54 UTC 2012 - fcrozat@suse.com

2
systemd.spec
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@ -86,6 +86,7 @@ Patch39: correct_plymouth_paths_and_conflicts.patch
# Never add any patches to this package without the upstream commit id
# in the patch. Any patches added here without a very good reason to make
# an exception will be silently removed with the next version update.
Patch40: 0001-util-never-follow-symlinks-in-rm_rf_children.patch
%description
Systemd is a system and service manager, compatible with SysV and LSB
@ -144,6 +145,7 @@ Plymouth integration for systemd
%patch36 -p1
%patch38 -p1
%patch39 -p1
%patch40 -p1
%build
autoreconf -fiv