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authorThiruvadi Rajaraman <trajaraman@mvista.com>2017-11-04 07:44:32 -0700
committerRichard Purdie <richard.purdie@linuxfoundation.org>2017-11-21 14:42:56 +0000
commit1fc1c9a11eee2f5ba727b18300a92949b166b035 (patch)
tree0e88dbec9b5a95943e92c33db679052de3043097
parentb754be84206b454789fbd6d444d00a4e422cb3e9 (diff)
downloadopenembedded-core-1fc1c9a11eee2f5ba727b18300a92949b166b035.zip
openembedded-core-1fc1c9a11eee2f5ba727b18300a92949b166b035.tar.gz
openembedded-core-1fc1c9a11eee2f5ba727b18300a92949b166b035.tar.bz2
curl: Security fix for CVE-2016-8618
Affected versions: curl 7.1 to and including 7.50.3 Not affected versions: curl >= 7.51.0 Signed-off-by: Thiruvadi Rajaraman <trajaraman@mvista.com> Signed-off-by: Armin Kuster <akuster@mvista.com>
-rw-r--r--meta/recipes-support/curl/curl/CVE-2016-8618.patch49
-rw-r--r--meta/recipes-support/curl/curl_7.50.1.bb1
2 files changed, 50 insertions, 0 deletions
diff --git a/meta/recipes-support/curl/curl/CVE-2016-8618.patch b/meta/recipes-support/curl/curl/CVE-2016-8618.patch
new file mode 100644
index 0000000..73be675
--- /dev/null
+++ b/meta/recipes-support/curl/curl/CVE-2016-8618.patch
@@ -0,0 +1,49 @@
+From 31106a073882656a2a5ab56c4ce2847e9a334c3c Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Wed, 28 Sep 2016 10:15:34 +0200
+Subject: [PATCH] aprintf: detect wrap-around when growing allocation
+
+On 32bit systems we could otherwise wrap around after 2GB and allocate 0
+bytes and crash.
+
+CVE-2016-8618
+
+Bug: https://curl.haxx.se/docs/adv_20161102D.html
+Reported-by: Cure53
+
+Upstream-Status: Backport
+https://curl.haxx.se/CVE-2016-8618.patch
+CVE: CVE-2016-8618
+Signed-off-by: Thiruvadi Rajaraman <trajaraman@mvista.com>
+
+---
+ lib/mprintf.c | 9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+Index: curl-7.44.0/lib/mprintf.c
+===================================================================
+--- curl-7.44.0.orig/lib/mprintf.c
++++ curl-7.44.0/lib/mprintf.c
+@@ -1011,16 +1011,19 @@ static int alloc_addbyter(int output, FI
+ infop->len =0;
+ }
+ else if(infop->len+1 >= infop->alloc) {
+- char *newptr;
++ char *newptr = NULL;
++ size_t newsize = infop->alloc*2;
+
+- newptr = realloc(infop->buffer, infop->alloc*2);
++ /* detect wrap-around or other overflow problems */
++ if(newsize > infop->alloc)
++ newptr = realloc(infop->buffer, newsize);
+
+ if(!newptr) {
+ infop->fail = 1;
+ return -1; /* fail */
+ }
+ infop->buffer = newptr;
+- infop->alloc *= 2;
++ infop->alloc = newsize;
+ }
+
+ infop->buffer[ infop->len ] = outc;
diff --git a/meta/recipes-support/curl/curl_7.50.1.bb b/meta/recipes-support/curl/curl_7.50.1.bb
index c11eb0c..5c63996 100644
--- a/meta/recipes-support/curl/curl_7.50.1.bb
+++ b/meta/recipes-support/curl/curl_7.50.1.bb
@@ -14,6 +14,7 @@ SRC_URI = "http://curl.haxx.se/download/curl-${PV}.tar.bz2 \
#
SRC_URI += " file://configure_ac.patch \
file://CVE-2016-8615.patch \
+ file://CVE-2016-8618.patch \
"
SRC_URI[md5sum] = "015f6a0217ca6f2c5442ca406476920b"