On 11/28/2012 02:13 AM, yanjun.zhu wrote:
From: "yanjun.zhu" <yanjun....@windriver.com>
Reference:https://code.google.com/p/libproxy/source/detail?r=853
Stack-based buffer overflow in the url::get_pac function in url.cpp
in libproxy 0.4.x before 0.4.9 allows remote servers to have an
unspecified impact via a large proxy.pac file.
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-4504
Signed-off-by: yanjun.zhu <yanjun....@windriver.com>
---
.../libproxy/libproxy/libproxy-0.4.7-CVE-2012-4504.patch | 15 +++++++++++++++
meta/recipes-support/libproxy/libproxy_0.4.7.bb | 1 +
2 files changed, 16 insertions(+)
create mode 100644
meta/recipes-support/libproxy/libproxy/libproxy-0.4.7-CVE-2012-4504.patch
diff --git
a/meta/recipes-support/libproxy/libproxy/libproxy-0.4.7-CVE-2012-4504.patch
b/meta/recipes-support/libproxy/libproxy/libproxy-0.4.7-CVE-2012-4504.patch
new file mode 100644
index 0000000..323a571
--- /dev/null
+++ b/meta/recipes-support/libproxy/libproxy/libproxy-0.4.7-CVE-2012-4504.patch
This is missing a patch header with Signed-off-by and Upstream-Status,
please add them.
Thanks
Sau!
@@ -0,0 +1,15 @@
+diff -urpN a/libproxy/url.cpp b/libproxy/url.cpp
+--- a/libproxy/url.cpp 2012-11-26 10:08:47.000000000 +0800
++++ b/libproxy/url.cpp 2012-11-26 10:05:54.000000000 +0800
+@@ -472,9 +472,10 @@ char* url::get_pac() {
+ // Add this chunk to our content length,
+ // ensuring that we aren't over our max size
+ content_length += chunk_length;
+- if (content_length >= PAC_MAX_SIZE) break;
+ }
+
++ if (content_length >= PAC_MAX_SIZE) break;
++
+ while (recvd != content_length) {
+ int r = recv(sock, buffer + recvd,
content_length - recvd, 0);
+ if (r < 0) break;
diff --git a/meta/recipes-support/libproxy/libproxy_0.4.7.bb
b/meta/recipes-support/libproxy/libproxy_0.4.7.bb
index e3721a8..fc32f57 100644
--- a/meta/recipes-support/libproxy/libproxy_0.4.7.bb
+++ b/meta/recipes-support/libproxy/libproxy_0.4.7.bb
@@ -13,6 +13,7 @@ PR = "r4"
SRC_URI = "http://libproxy.googlecode.com/files/libproxy-${PV}.tar.gz \
file://g++-namepace.patch \
file://libproxy_fix_for_gcc4.7.patch \
+ file://libproxy-0.4.7-CVE-2012-4504.patch \
"
SRC_URI[md5sum] = "509e03a488a61cd62bfbaf3ab6a2a7a5"
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