[oe-commits] Chen Qi : openssh: fix for CVE-2014-2532
git at git.openembedded.org
git at git.openembedded.org
Tue May 13 18:34:33 UTC 2014
Module: openembedded-core.git
Branch: master-next
Commit: a8d3b8979c27a8dc87971b66a1d9d9282f660596
URL: http://git.openembedded.org/?p=openembedded-core.git&a=commit;h=a8d3b8979c27a8dc87971b66a1d9d9282f660596
Author: Chen Qi <Qi.Chen at windriver.com>
Date: Tue May 13 15:46:26 2014 +0800
openssh: fix for CVE-2014-2532
sshd in OpenSSH before 6.6 does not properly support wildcards on
AcceptEnv lines in sshd_config, which allows remote attackers to
bypass intended environment restrictions by using a substring located
before a wildcard character.
Signed-off-by: Chen Qi <Qi.Chen at windriver.com>
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
.../openssh/openssh/openssh-CVE-2014-2532.patch | 22 ++++++++++++++++++++++
meta/recipes-connectivity/openssh/openssh_6.5p1.bb | 3 ++-
2 files changed, 24 insertions(+), 1 deletion(-)
diff --git a/meta/recipes-connectivity/openssh/openssh/openssh-CVE-2014-2532.patch b/meta/recipes-connectivity/openssh/openssh/openssh-CVE-2014-2532.patch
new file mode 100644
index 0000000..3deaf3f
--- /dev/null
+++ b/meta/recipes-connectivity/openssh/openssh/openssh-CVE-2014-2532.patch
@@ -0,0 +1,22 @@
+Upstream-Status: Backport
+
+Fix for CVE-2014-2532
+
+Backported from openssh-6.6p1.tar.gz
+
+Signed-off-by: Chen Qi <Qi.Chen at windriver.com>
+---
+--- a/session.c
++++ b/session.c
+@@ -955,6 +955,11 @@
+ u_int envsize;
+ u_int i, namelen;
+
++ if (strchr(name, '=') != NULL) {
++ error("Invalid environment variable \"%.100s\"", name);
++ return;
++ }
++
+ /*
+ * If we're passed an uninitialized list, allocate a single null
+ * entry before continuing.
diff --git a/meta/recipes-connectivity/openssh/openssh_6.5p1.bb b/meta/recipes-connectivity/openssh/openssh_6.5p1.bb
index b93b9ae..230f38a 100644
--- a/meta/recipes-connectivity/openssh/openssh_6.5p1.bb
+++ b/meta/recipes-connectivity/openssh/openssh_6.5p1.bb
@@ -29,7 +29,8 @@ SRC_URI = "ftp://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-${PV}.tar.
file://sshdgenkeys.service \
file://volatiles.99_sshd \
file://add-test-support-for-busybox.patch \
- file://run-ptest"
+ file://run-ptest \
+ file://openssh-CVE-2014-2532.patch"
PAM_SRC_URI = "file://sshd"
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