diff options
Diffstat (limited to 'libre/systemd/0001-util-never-follow-symlinks-in-rm_rf_children.patch')
| -rw-r--r-- | libre/systemd/0001-util-never-follow-symlinks-in-rm_rf_children.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/libre/systemd/0001-util-never-follow-symlinks-in-rm_rf_children.patch b/libre/systemd/0001-util-never-follow-symlinks-in-rm_rf_children.patch new file mode 100644 index 000000000..9bf84dda6 --- /dev/null +++ b/libre/systemd/0001-util-never-follow-symlinks-in-rm_rf_children.patch @@ -0,0 +1,31 @@ +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 file changed, 2 insertions(+), 1 deletion(-) + +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; +-- +1.7.9.4 |