Blame SOURCES/0003-c-ares-NAPTR-parser-out-of-bounds-access.patch
|
 |
7e0d7f |
From 15dfe22be278cb1f0194de0b0ab790ba9dc4fc33 Mon Sep 17 00:00:00 2001
|
|
|
7e0d7f |
From: Zuzana Svetlikova <zsvetlik@redhat.com>
|
|
|
7e0d7f |
Date: Fri, 23 Jun 2017 23:11:28 +0200
|
|
|
7e0d7f |
Subject: [PATCH] c-ares NAPTR parser out of bounds access
|
|
|
7e0d7f |
|
|
|
7e0d7f |
CVE: CVE-2017-1000381
|
|
|
7e0d7f |
Upstream bug: https://c-ares.haxx.se/adv_20170620.html
|
|
|
7e0d7f |
---
|
|
|
7e0d7f |
deps/cares/src/ares_parse_naptr_reply.c | 7 ++++++-
|
|
|
7e0d7f |
1 file changed, 6 insertions(+), 1 deletion(-)
|
|
|
7e0d7f |
|
|
|
7e0d7f |
diff --git a/deps/cares/src/ares_parse_naptr_reply.c b/deps/cares/src/ares_parse_naptr_reply.c
|
|
|
7e0d7f |
index 11634df984..717d355778 100644
|
|
|
7e0d7f |
--- a/deps/cares/src/ares_parse_naptr_reply.c
|
|
|
7e0d7f |
+++ b/deps/cares/src/ares_parse_naptr_reply.c
|
|
|
7e0d7f |
@@ -110,6 +110,12 @@ ares_parse_naptr_reply (const unsigned char *abuf, int alen,
|
|
|
7e0d7f |
status = ARES_EBADRESP;
|
|
|
7e0d7f |
break;
|
|
|
7e0d7f |
}
|
|
|
7e0d7f |
+ /* RR must contain at least 7 bytes = 2 x int16 + 3 x name */
|
|
|
7e0d7f |
+ if (rr_len < 7)
|
|
|
7e0d7f |
+ {
|
|
|
7e0d7f |
+ status = ARES_EBADRESP;
|
|
|
7e0d7f |
+ break;
|
|
|
7e0d7f |
+ }
|
|
|
7e0d7f |
|
|
|
7e0d7f |
/* Check if we are really looking at a NAPTR record */
|
|
|
7e0d7f |
if (rr_class == C_IN && rr_type == T_NAPTR)
|
|
|
7e0d7f |
@@ -185,4 +191,3 @@ ares_parse_naptr_reply (const unsigned char *abuf, int alen,
|
|
|
7e0d7f |
|
|
|
7e0d7f |
return ARES_SUCCESS;
|
|
|
7e0d7f |
}
|
|
|
7e0d7f |
-
|
|
|
7e0d7f |
--
|
|
|
7e0d7f |
2.13.1
|
|
|
7e0d7f |
|