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Fix CVE-2016-10196 (buffer overflow in evutil):
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10196
https://github.com/libevent/libevent/issues/318
Patch copied from upstream source repository:
https://github.com/libevent/libevent/commit/329acc18a0768c21ba22522f01a5c7f46cacc4d5
From 28bdc2f3f62259d21ccaf7be2b60ef0a53e6f342 Mon Sep 17 00:00:00 2001
From: Azat Khuzhin <a3at.mail@gmail.com>
Date: Sun, 31 Jan 2016 00:57:16 +0300
Subject: [PATCH] evutil_parse_sockaddr_port(): fix buffer overflow
---
evutil.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/evutil.c b/evutil.c
index 33445170..e2dfe6e4 100644
--- a/evutil.c
+++ b/evutil.c
@@ -1808,12 +1808,12 @@ evutil_parse_sockaddr_port(const char *ip_as_string, struct sockaddr *out, int *
cp = strchr(ip_as_string, ':');
if (*ip_as_string == '[') {
- int len;
+ size_t len;
if (!(cp = strchr(ip_as_string, ']'))) {
return -1;
}
- len = (int) ( cp-(ip_as_string + 1) );
- if (len > (int)sizeof(buf)-1) {
+ len = ( cp-(ip_as_string + 1) );
+ if (len > sizeof(buf)-1) {
return -1;
}
memcpy(buf, ip_as_string+1, len);
--
2.11.0
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