[oe-commits] Joshua Lock : sudo: backport patch to address CVE 2012-0809
git at git.openembedded.org
git at git.openembedded.org
Thu Mar 1 16:01:47 UTC 2012
Module: openembedded-core.git
Branch: 2011-1
Commit: 286cdd5db60b4f668e75cd9e05efb97acb08b7a6
URL: http://git.openembedded.org/?p=openembedded-core.git&a=commit;h=286cdd5db60b4f668e75cd9e05efb97acb08b7a6
Author: Joshua Lock <josh at linux.intel.com>
Date: Wed Feb 29 16:34:27 2012 -0800
sudo: backport patch to address CVE 2012-0809
This is a format string vulnerability "that can be used to crash
sudo or potentially allow an unauthorized user to elevate privileges."
Signed-off-by: Joshua Lock <josh at linux.intel.com>
---
.../sudo/files/format-string.patch | 33 ++++++++++++++++++++
meta/recipes-extended/sudo/sudo_1.8.1p2.bb | 5 ++-
2 files changed, 36 insertions(+), 2 deletions(-)
diff --git a/meta/recipes-extended/sudo/files/format-string.patch b/meta/recipes-extended/sudo/files/format-string.patch
new file mode 100644
index 0000000..15056fd
--- /dev/null
+++ b/meta/recipes-extended/sudo/files/format-string.patch
@@ -0,0 +1,33 @@
+This patch, extracted from upstreams sudo-1.8.3p2.patch.gz addresses the
+recent Sudo format string vulnerability CVE 2012-0809.
+
+http://www.sudo.ws/sudo/alerts/sudo_debug.html
+
+Signed-off-by: Joshua Lock <josh at linux.intel.com>
+
+Upstream-Status: Backport
+
+diff -urNa sudo-1.8.3p1/src/sudo.c sudo-1.8.3p2/src/sudo.c
+--- sudo-1.8.3p1/src/sudo.c Fri Oct 21 09:01:26 2011
++++ sudo-1.8.3p2/src/sudo.c Tue Jan 24 15:59:03 2012
+@@ -1208,15 +1208,15 @@
+ sudo_debug(int level, const char *fmt, ...)
+ {
+ va_list ap;
+- char *fmt2;
++ char *buf;
+
+ if (level > debug_level)
+ return;
+
+- /* Backet fmt with program name and a newline to make it a single write */
+- easprintf(&fmt2, "%s: %s\n", getprogname(), fmt);
++ /* Bracket fmt with program name and a newline to make it a single write */
+ va_start(ap, fmt);
+- vfprintf(stderr, fmt2, ap);
++ evasprintf(&buf, fmt, ap);
+ va_end(ap);
+- efree(fmt2);
++ fprintf(stderr, "%s: %s\n", getprogname(), buf);
++ efree(buf);
+ }
diff --git a/meta/recipes-extended/sudo/sudo_1.8.1p2.bb b/meta/recipes-extended/sudo/sudo_1.8.1p2.bb
index b065447..3694c89 100644
--- a/meta/recipes-extended/sudo/sudo_1.8.1p2.bb
+++ b/meta/recipes-extended/sudo/sudo_1.8.1p2.bb
@@ -1,10 +1,11 @@
require sudo.inc
-PR = "r3"
+PR = "r4"
SRC_URI = "http://ftp.sudo.ws/sudo/dist/sudo-${PV}.tar.gz \
file://libtool.patch \
- file://sudo-parallel-build.patch \
+ file://sudo-parallel-build.patch \
+ file://format-string.patch \
${@base_contains('DISTRO_FEATURES', 'pam', '${PAM_SRC_URI}', '', d)}"
PAM_SRC_URI = "file://sudo.pam"
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