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openssh: fix for CVE-2014-2532

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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.

(From OE-Core rev: a8d3b8979c27a8dc87971b66a1d9d9282f660596)

(From OE-Core rev: e5786afbfa79e1288d1df2401684c4c151c60406)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Conflicts:
	meta/recipes-connectivity/openssh/openssh_6.5p1.bb
This commit is contained in:
Chen Qi
2014-05-13 15:46:26 +08:00
committed by Richard Purdie
parent 989013222e
commit b6124bdbfb
2 changed files with 24 additions and 1 deletions
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22
meta/recipes-connectivity/openssh/openssh/openssh-CVE-2014-2532.patch Normal file
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@@ -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@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.

3
meta/recipes-connectivity/openssh/openssh_6.5p1.bb
View File

@@ -27,7 +27,8 @@ SRC_URI = "ftp://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-${PV}.tar.
file://sshd.socket \
file://sshd@.service \
file://sshdgenkeys.service \
file://volatiles.99_sshd "
file://volatiles.99_sshd \
file://openssh-CVE-2014-2532.patch"
PAM_SRC_URI = "file://sshd"