From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 13/23] netfilter: nf_ct_h323: Out Of Bound Read in Netfilter Conntrack
Date: Tue, 7 Nov 2017 01:52:03 +0100 [thread overview]
Message-ID: <20171107005213.22618-14-pablo@netfilter.org> (raw)
In-Reply-To: <20171107005213.22618-1-pablo@netfilter.org>
From: Eric Sesterhenn <eric.sesterhenn@x41-dsec.de>
Add missing counter decrement to prevent out of bounds memory read.
Signed-off-by: Eric Sesterhenn <eric.sesterhenn@x41-dsec.de>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
net/netfilter/nf_conntrack_h323_asn1.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/netfilter/nf_conntrack_h323_asn1.c b/net/netfilter/nf_conntrack_h323_asn1.c
index 7831aa1effc9..cf1bf2605c10 100644
--- a/net/netfilter/nf_conntrack_h323_asn1.c
+++ b/net/netfilter/nf_conntrack_h323_asn1.c
@@ -877,6 +877,7 @@ int DecodeQ931(unsigned char *buf, size_t sz, Q931 *q931)
if (sz < 1)
break;
len = *p++;
+ sz--;
if (sz < len)
break;
p += len;
--
2.11.0
next prev parent reply other threads:[~2017-11-07 0:52 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-07 0:51 [PATCH 00/23] Netfilter/IPVS updates for net-next Pablo Neira Ayuso
2017-11-07 0:51 ` [PATCH 01/23] netfilter: ipset: Compress return logic Pablo Neira Ayuso
2017-11-07 0:51 ` [PATCH 02/23] netfilter: ipset: Fix sparse warnings Pablo Neira Ayuso
2017-11-07 0:51 ` [PATCH 03/23] netfilter: ipset: deduplicate prefixlen maps Pablo Neira Ayuso
2017-11-07 0:51 ` [PATCH 04/23] netfilter: nat: use test_and_clear_bit when deleting ct from bysource list Pablo Neira Ayuso
2017-11-07 0:51 ` [PATCH 05/23] netfilter: conntrack: add and use nf_l4proto_log_invalid Pablo Neira Ayuso
2017-11-07 0:51 ` [PATCH 06/23] netfilter: conntrack: add and use nf_ct_l4proto_log_invalid Pablo Neira Ayuso
2017-11-07 0:51 ` [PATCH 07/23] netfilter: conntrack: remove pf argument from l4 packet functions Pablo Neira Ayuso
2017-11-07 0:51 ` [PATCH 08/23] netfilter: x_tables: make xt_replace_table wait until old rules are not used anymore Pablo Neira Ayuso
2017-11-07 0:51 ` [PATCH 09/23] netfilter: x_tables: don't use seqlock when fetching old counters Pablo Neira Ayuso
2017-11-07 0:52 ` [PATCH 10/23] netfilter: conntrack: make l3proto trackers const Pablo Neira Ayuso
2017-11-07 0:52 ` [PATCH 11/23] netfilter: nf_conntrack_h323: Remove typedef struct Pablo Neira Ayuso
2017-11-07 0:52 ` [PATCH 12/23] netfilter: xt_connlimit: don't store address in the conn nodes Pablo Neira Ayuso
2017-11-07 0:52 ` Pablo Neira Ayuso [this message]
2017-11-07 0:52 ` [PATCH 14/23] netfilter: ipvs: Use %pS printk format for direct addresses Pablo Neira Ayuso
2017-11-07 0:52 ` [PATCH 15/23] netfilter: ipvs: Fix inappropriate output of procfs Pablo Neira Ayuso
2017-11-07 0:52 ` [PATCH 16/23] netfilter: ebtables: clean up initialization of buf Pablo Neira Ayuso
2017-11-07 0:52 ` [PATCH 17/23] netfilter: xt_connlimit: remove mask argument Pablo Neira Ayuso
2017-11-07 0:52 ` [PATCH 18/23] netfilter: nft_hash: fix nft_hash_deactivate Pablo Neira Ayuso
2017-11-07 0:52 ` [PATCH 19/23] netfilter: conntrack: don't cache nlattr_tuple_size result in nla_size Pablo Neira Ayuso
2017-11-07 0:52 ` [PATCH 20/23] netfilter: conntrack: move nf_ct_netns_{get,put}() to core Pablo Neira Ayuso
2017-11-07 0:52 ` [PATCH 21/23] netfilter: conntrack: use power efficient workqueue Pablo Neira Ayuso
2017-11-07 0:52 ` [PATCH 22/23] netfilter: nf_tables: performance set policy skips size description in selection Pablo Neira Ayuso
2017-11-07 0:52 ` [PATCH 23/23] netfilter: nf_tables: get set elements via netlink Pablo Neira Ayuso
2017-11-08 5:32 ` [PATCH 00/23] Netfilter/IPVS updates for net-next David Miller
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