diff options
Diffstat (limited to 'system/polkit/CVE-2013-4288.patch')
| -rw-r--r-- | system/polkit/CVE-2013-4288.patch | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/system/polkit/CVE-2013-4288.patch b/system/polkit/CVE-2013-4288.patch deleted file mode 100644 index 0ca8131e8..000000000 --- a/system/polkit/CVE-2013-4288.patch +++ /dev/null @@ -1,123 +0,0 @@ -From a3fa3b86f0015e42a534526ed800bcde5b3f2a15 Mon Sep 17 00:00:00 2001 -From: Colin Walters <walters@verbum.org> -Date: Mon, 19 Aug 2013 12:16:11 -0400 -Subject: [PATCH] pkcheck: Support --process=pid,start-time,uid syntax too - -The uid is a new addition; this allows callers such as libvirt to -close a race condition in reading the uid of the process talking to -them. They can read it via getsockopt(SO_PEERCRED) or equivalent, -rather than having pkcheck look at /proc later after the fact. - -Programs which invoke pkcheck but need to know beforehand (i.e. at -compile time) whether or not it supports passing the uid can -use: - -pkcheck_supports_uid=$($PKG_CONFIG --variable pkcheck_supports_uid polkit-gobject-1) -test x$pkcheck_supports_uid = xyes - -Conflicts: - docs/man/pkcheck.xml - src/programs/pkcheck.c ---- - data/polkit-gobject-1.pc.in | 3 +++ - docs/man/pkcheck.xml | 33 +++++++++++++++++++++------------ - src/programs/pkcheck.c | 7 ++++++- - 3 files changed, 30 insertions(+), 13 deletions(-) - -diff --git a/data/polkit-gobject-1.pc.in b/data/polkit-gobject-1.pc.in -index c39677d..5c4c620 100644 ---- a/data/polkit-gobject-1.pc.in -+++ b/data/polkit-gobject-1.pc.in -@@ -11,3 +11,6 @@ Version: @VERSION@ - Libs: -L${libdir} -lpolkit-gobject-1 - Cflags: -I${includedir}/polkit-1 - Requires: gio-2.0 >= 2.18 glib-2.0 >= 2.18 -+# Programs using pkcheck can use this to determine -+# whether or not it can be passed a uid. -+pkcheck_supports_uid=true -diff --git a/docs/man/pkcheck.xml b/docs/man/pkcheck.xml -index 6b8a874..9f2faef 100644 ---- a/docs/man/pkcheck.xml -+++ b/docs/man/pkcheck.xml -@@ -55,6 +55,9 @@ - <arg choice="plain"> - <replaceable>pid,pid-start-time</replaceable> - </arg> -+ <arg choice="plain"> -+ <replaceable>pid,pid-start-time,uid</replaceable> -+ </arg> - </group> - </arg> - <arg choice="plain"> -@@ -90,7 +93,7 @@ - <title>DESCRIPTION</title> - <para> - <command>pkcheck</command> is used to check whether a process, specified by -- either <option>--process</option> or <option>--system-bus-name</option>, -+ either <option>--process</option> (see below) or <option>--system-bus-name</option>, - is authorized for <replaceable>action</replaceable>. The <option>--detail</option> - option can be used zero or more times to pass details about <replaceable>action</replaceable>. - If <option>--allow-user-interaction</option> is passed, <command>pkcheck</command> blocks -@@ -160,17 +163,23 @@ KEY3=VALUE3 - <refsect1 id="pkcheck-notes"> - <title>NOTES</title> - <para> -- Since process identifiers can be recycled, the caller should always use -- <replaceable>pid,pid-start-time</replaceable> to specify the process -- to check for authorization when using the <option>--process</option> option. -- The value of <replaceable>pid-start-time</replaceable> -- can be determined by consulting e.g. the -- <citerefentry> -- <refentrytitle>proc</refentrytitle><manvolnum>5</manvolnum> -- </citerefentry> -- file system depending on the operating system. If only <replaceable>pid</replaceable> -- is passed to the <option>--process</option> option, then <command>pkcheck</command> -- will look up the start time itself but note that this may be racy. -+ Do not use either the bare <replaceable>pid</replaceable> or -+ <replaceable>pid,start-time</replaceable> syntax forms for -+ <option>--process</option>. There are race conditions in both. -+ New code should always use -+ <replaceable>pid,pid-start-time,uid</replaceable>. The value of -+ <replaceable>start-time</replaceable> can be determined by -+ consulting e.g. the -+ <citerefentry><refentrytitle>proc</refentrytitle><manvolnum>5</manvolnum></citerefentry> -+ file system depending on the operating system. If fewer than 3 -+ arguments are passed, <command>pkcheck</command> will attempt to -+ look up them up internally, but note that this may be racy. -+ </para> -+ <para> -+ If your program is a daemon with e.g. a custom Unix domain -+ socket, you should determine the <replaceable>uid</replaceable> -+ parameter via operating system mechanisms such as -+ <literal>PEERCRED</literal>. - </para> - </refsect1> - -diff --git a/src/programs/pkcheck.c b/src/programs/pkcheck.c -index 719a36c..057e926 100644 ---- a/src/programs/pkcheck.c -+++ b/src/programs/pkcheck.c -@@ -372,6 +372,7 @@ main (int argc, char *argv[]) - else if (g_strcmp0 (argv[n], "--process") == 0 || g_strcmp0 (argv[n], "-p") == 0) - { - gint pid; -+ guint uid; - guint64 pid_start_time; - - n++; -@@ -381,7 +382,11 @@ main (int argc, char *argv[]) - goto out; - } - -- if (sscanf (argv[n], "%i,%" G_GUINT64_FORMAT, &pid, &pid_start_time) == 2) -+ if (sscanf (argv[n], "%i,%" G_GUINT64_FORMAT ",%u", &pid, &pid_start_time, &uid) == 3) -+ { -+ subject = polkit_unix_process_new_for_owner (pid, pid_start_time, uid); -+ } -+ else if (sscanf (argv[n], "%i,%" G_GUINT64_FORMAT, &pid, &pid_start_time) == 2) - { - subject = polkit_unix_process_new_full (pid, pid_start_time); - } --- -1.8.5.1 - |