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authorRory Byrne <[email protected]>2015-05-14 10:54:31 +0100
committerRory Byrne <[email protected]>2015-05-22 09:05:00 +0100
commitc0be40c2dad6661d28e7aafb35057f06095bb2bb (patch)
tree0f888b34fa50d974eeadeaeac29f700ae4cb2d92 /lib/kernel/test
parentefbfe9602983ff451b864e557bdf3733222b78ba (diff)
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Fix parsing of IPv6 addresses to limit leading zeros
The current implementations of inet:parse_ipv6_address/1 and inet:parse_ipv6strict_address/1 permit address strings which have an unlimited number of leading zeros. Addresses such as: "0000000000000000000000000000000ffff::" "::00000000000000000000000000000000000000000000000000000000" "::0000000f435:1" If we are using this facility to validate string representations of IPv6 addresses, then we would end up validating addresses which are non-conformant (with respect to RFC 4291 section 2.2) and potentially dangerous. This patch ensures that each segment of an IPv6 address has a maximum of 4 hex digits.
Diffstat (limited to 'lib/kernel/test')
-rw-r--r--lib/kernel/test/inet_SUITE.erl3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/kernel/test/inet_SUITE.erl b/lib/kernel/test/inet_SUITE.erl
index 44a32fc1ec..c77de9316f 100644
--- a/lib/kernel/test/inet_SUITE.erl
+++ b/lib/kernel/test/inet_SUITE.erl
@@ -569,8 +569,11 @@ parse_address(Config) when is_list(Config) ->
"::-1",
"::g",
"f:f11::10100:2",
+ "f:f11::01100:2",
"::17000",
+ "::01700",
"10000::",
+ "01000::",
"::8:7:6:5:4:3:2:1",
"8:7:6:5:4:3:2:1::",
"8:7:6:5:4::3:2:1",