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Include 0.0.0.0/8 in DNS rebind checks.

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This commit is contained in:
Simon Kelley
2015-08-03 21:52:12 +01:00
parent 63ec5d1264
commit d2aa7dfbb6
2 changed files with 9 additions and 1 deletions
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7
CHANGELOG
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@@ -1,3 +1,10 @@
version 2.76
Include 0.0.0.0/8 in DNS rebind checks. This range
translates to hosts on the local network, or, at
least, 0.0.0.0 accesses the local host, so could
be targets for DNS rebinding. See RFC 5735 section 3
for details. Thanks to Stephen Röttger for the bug report.
version 2.75 version 2.75
Fix reversion on 2.74 which caused 100% CPU use when a Fix reversion on 2.74 which caused 100% CPU use when a
dhcp-script is configured. Thanks to Adrian Davey for dhcp-script is configured. Thanks to Adrian Davey for

1
src/rfc1035.c
View File

@@ -729,6 +729,7 @@ int private_net(struct in_addr addr, int ban_localhost)
return return
(((ip_addr & 0xFF000000) == 0x7F000000) && ban_localhost) /* 127.0.0.0/8 (loopback) */ || (((ip_addr & 0xFF000000) == 0x7F000000) && ban_localhost) /* 127.0.0.0/8 (loopback) */ ||
((ip_addr & 0xFF000000) == 0x00000000) /* RFC 5735 section 3. "here" network */ ||
((ip_addr & 0xFFFF0000) == 0xC0A80000) /* 192.168.0.0/16 (private) */ || ((ip_addr & 0xFFFF0000) == 0xC0A80000) /* 192.168.0.0/16 (private) */ ||
((ip_addr & 0xFF000000) == 0x0A000000) /* 10.0.0.0/8 (private) */ || ((ip_addr & 0xFF000000) == 0x0A000000) /* 10.0.0.0/8 (private) */ ||
((ip_addr & 0xFFF00000) == 0xAC100000) /* 172.16.0.0/12 (private) */ || ((ip_addr & 0xFFF00000) == 0xAC100000) /* 172.16.0.0/12 (private) */ ||