[OE-core] [PATCH] openssl: fix CVE-2014-0198
Maxin B. John
maxin.john at enea.com
Tue May 6 00:53:34 UTC 2014
From: "Maxin B. John" <maxin.john at enea.com>
A null pointer dereference bug was discovered in do_ssl3_write().
An attacker could possibly use this to cause OpenSSL to crash, resulting
in a denial of service.
https://access.redhat.com/security/cve/CVE-2014-0198
Signed-off-by: Maxin B. John <maxin.john at enea.com>
---
.../openssl/openssl-CVE-2014-0198-fix.patch | 23 ++++++++++++++++++++
.../recipes-connectivity/openssl/openssl_1.0.1g.bb | 1 +
2 files changed, 24 insertions(+)
create mode 100644 meta/recipes-connectivity/openssl/openssl/openssl-CVE-2014-0198-fix.patch
diff --git a/meta/recipes-connectivity/openssl/openssl/openssl-CVE-2014-0198-fix.patch b/meta/recipes-connectivity/openssl/openssl/openssl-CVE-2014-0198-fix.patch
new file mode 100644
index 0000000..4c51d74
--- /dev/null
+++ b/meta/recipes-connectivity/openssl/openssl/openssl-CVE-2014-0198-fix.patch
@@ -0,0 +1,23 @@
+Upstream-Status: Backport
+
+Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1093837
+
+CVE-2014-0198: An attacker can trigger generation of an SSL
+alert which could cause a null pointer dereference.
+
+Signed-off-by: Maxin B. John <maxin.john at enea.com>
+---
+diff -Naur openssl-1.0.1g-orig/ssl/s3_pkt.c openssl-1.0.1g/ssl/s3_pkt.c
+--- openssl-1.0.1g-orig/ssl/s3_pkt.c 2014-03-17 17:14:20.000000000 +0100
++++ openssl-1.0.1g/ssl/s3_pkt.c 2014-05-06 02:32:43.862587660 +0200
+@@ -657,6 +657,10 @@
+ if (i <= 0)
+ return(i);
+ /* if it went, fall through and send more stuff */
++ /* we may have released our buffer, so get it again */
++ if (wb->buf == NULL)
++ if (!ssl3_setup_write_buffer(s))
++ return -1;
+ }
+
+ if (len == 0 && !create_empty_fragment)
diff --git a/meta/recipes-connectivity/openssl/openssl_1.0.1g.bb b/meta/recipes-connectivity/openssl/openssl_1.0.1g.bb
index 5ca29d0..7c44546 100644
--- a/meta/recipes-connectivity/openssl/openssl_1.0.1g.bb
+++ b/meta/recipes-connectivity/openssl/openssl_1.0.1g.bb
@@ -34,6 +34,7 @@ SRC_URI += "file://configure-targets.patch \
file://initial-aarch64-bits.patch \
file://find.pl \
file://openssl-fix-des.pod-error.patch \
+ file://openssl-CVE-2014-0198-fix.patch \
file://Makefiles-ptest.patch \
file://run-ptest \
"
--
1.7.10.4
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