[PATCH][krogoth 03/12] curl: CVE-2016-8617

Sona Sarmadi
2016-11-11T09:49:16Z

OOB write via unchecked multiplication

Affected versions: curl 7.1 to and including 7.50.3

Reference:
https://curl.haxx.se/docs/adv_20161102C.html

Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
---
meta/recipes-support/curl/curl/CVE-2016-8617.patch | 28 ++++++++++++++++++++++
meta/recipes-support/curl/curl_7.47.1.bb | 1 +
2 files changed, 29 insertions(+)
create mode 100644 meta/recipes-support/curl/curl/CVE-2016-8617.patch

diff --git a/meta/recipes-support/curl/curl/CVE-2016-8617.patch b/meta/recipes-support/curl/curl/CVE-2016-8617.patch
new file mode 100644
index 0000000..d16c2f5
--- /dev/null
+++ b/meta/recipes-support/curl/curl/CVE-2016-8617.patch
@@ -0,0 +1,28 @@
+From efd24d57426bd77c9b5860e6b297904703750412 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Wed, 28 Sep 2016 00:05:12 +0200
+Subject: [PATCH] base64: check for integer overflow on large input
+
+CVE: CVE-2016-8617
+Upstream-Status: Backport
+
+Bug: https://curl.haxx.se/docs/adv_20161102C.html
+Reported-by: Cure53
+
+Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
+---
+diff -ruN a/lib/base64.c b/lib/base64.c
+--- a/lib/base64.c 2016-02-03 00:02:43.000000000 +0100
++++ b/lib/base64.c 2016-11-07 09:22:07.918167530 +0100
+@@ -190,6 +190,11 @@
+ if(0 == insize)
+ insize = strlen(indata);
+
++#if SIZEOF_SIZE_T == 4
++ if(insize > UINT_MAX/4)
++ return CURLE_OUT_OF_MEMORY;
++#endif
++
+ base64data = output = malloc(insize*4/3+4);
+ if(NULL == output)
+ return CURLE_OUT_OF_MEMORY;
diff --git a/meta/recipes-support/curl/curl_7.47.1.bb b/meta/recipes-support/curl/curl_7.47.1.bb
index 20c3721..3724411 100644
--- a/meta/recipes-support/curl/curl_7.47.1.bb
+++ b/meta/recipes-support/curl/curl_7.47.1.bb
@@ -17,6 +17,7 @@ SRC_URI += " file://configure_ac.patch \
file://CVE-2016-7141.patch \
file://CVE-2016-8615.patch \
file://CVE-2016-8616.patch \
+ file://CVE-2016-8617.patch \