uclibc: Security fix CVE-2016-2225

CVE-2016-2225 Make sure to always terminate decoded string

This change is being provide to comply to Yocto compatiblility.

(From OE-Core rev: 093d76f3f4a385aae46304bd572ce1545c6bcf33)

Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 33 insertions, 0 deletions

diff --git a/meta/recipes-core/uclibc/uclibc-git.inc b/meta/recipes-core/uclibc/uclibc-git.inc
index d3fb2a8a8e..b7184794d1 100644
--- a/meta/recipes-core/uclibc/uclibc-git.inc
+++ b/meta/recipes-core/uclibc/uclibc-git.inc
@@ -20,5 +20,6 @@ SRC_URI = "git://uclibc.org/uClibc.git;branch=master \
         file://0001-fcntl-Add-AT_EMPTY_PATH-for-all-and-O_PATH-for-arm.patch \
         file://0001-wire-in-syncfs.patch \
         file://CVE-2016-2224.patch \
+        file://CVE-2016-2225.patch \
 "
 S = "${WORKDIR}/git"
diff --git a/meta/recipes-core/uclibc/uclibc-git/CVE-2016-2225.patch b/meta/recipes-core/uclibc/uclibc-git/CVE-2016-2225.patch
new file mode 100644
index 0000000000..0217e4bf55
--- /dev/null
+++ b/meta/recipes-core/uclibc/uclibc-git/CVE-2016-2225.patch
@@ -0,0 +1,32 @@
+From bb01edff0377f2585ce304ecbadcb7b6cde372ac Mon Sep 17 00:00:00 2001
+From: Waldemar Brodkorb <wbx@openadk.org>
+Date: Mon, 25 Jan 2016 21:11:34 +0100
+Subject: [PATCH] Make sure to always terminate decoded string
+
+Write a terminating '\0' to dest when the first byte of the encoded data
+is 0. This corner case was previously missed.
+
+Signed-off-by: Daniel Fahlgren <daniel@fahlgren.se>
+Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
+
+Upstream-Status: Backport
+http://repo.or.cz/uclibc-ng.git/commit/bb01edff0377f2585ce304ecbadcb7b6cde372ac
+CVE: CVE-2016-2225
+Signed-off-by: Armin Kuster <akuster@mvista.com>
+
+---
+ libc/inet/resolv.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+Index: git/libc/inet/resolv.c
+===================================================================
+--- git.orig/libc/inet/resolv.c
++++ git/libc/inet/resolv.c
+@@ -671,6 +671,7 @@ int __decode_dotted(const unsigned char
+        if (!packet)
+                return -1;
+ 
++       dest[0] = '\0';
+        while (--maxiter) {
+                if (offset >= packet_len)
+                        return -1;