1 files changed, 28 insertions, 0 deletions
diff --git a/package/network/utils/curl/patches/107-CVE-2017-1000257.patch b/package/network/utils/curl/patches/107-CVE-2017-1000257.patch
new file mode 100644
index 0000000000..7baaa75df1
--- /dev/null
+++ b/package/network/utils/curl/patches/107-CVE-2017-1000257.patch
@@ -0,0 +1,28 @@
+From 13c9a9ded3ae744a1e11cbc14e9146d9fa427040 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Sat, 7 Oct 2017 00:11:31 +0200
+Subject: [PATCH] imap: if a FETCH response has no size, don't call write
+ callback
+
+CVE-2017-1000257
+
+Reported-by: Brian Carpenter and 0xd34db347
+Also detected by OSS-Fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3586
+---
+ lib/imap.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/lib/imap.c
++++ b/lib/imap.c
+@@ -1140,6 +1140,11 @@ static CURLcode imap_state_fetch_resp(st
+         /* The conversion from curl_off_t to size_t is always fine here */
+         chunk = (size_t)size;
+ 
++      if(!chunk) {
++        /* no size, we're done with the data */
++        state(conn, IMAP_STOP);
++        return CURLE_OK;
++      }
+       result = Curl_client_write(conn, CLIENTWRITE_BODY, pp->cache, chunk);
+       if(result)
+         return result;