diff options
author | Oliver Ford <ojford@gmail.com> | 2017-06-02 15:34:37 +0000 |
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committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-06-19 19:29:54 +0200 |
commit | 79e1edd1e5a019992311b52b8951cecbd95a04c5 (patch) | |
tree | 834c6dbaafefa3f4382d72ad15c1fc2834f3b674 /iptables/xtables-restore.c | |
parent | c49a93f18e03c0935cb209dca14ce438b2d5f9be (diff) |
iptables-xml: Fix segfault on jump without a target
As reported in Bugzilla #1152, a segfault occurs in iptables-xml if a
jump or goto argument lacks a target argument. The following input will
segfault:
*filter
:INPUT ACCEPT [0:0]
-A INPUT -p tcp --dport 2200 -j
Problem occurs in do_rule_part, where the existsChain() function is called
with argv[arg + 1]. If the jump/goto argument is the last argument, then
arg + 1 is out of the array bounds. The fix ensures that arg + 1 is within
the array bounds before the call to existsChain() is made.
Signed-off-by: Oliver Ford <ojford@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'iptables/xtables-restore.c')
0 files changed, 0 insertions, 0 deletions