From b139c1d70fac0e6ab4fd926f05658876d7036eb0 Mon Sep 17 00:00:00 2001 From: Bob Halley Date: Sun, 28 Apr 2013 09:21:37 +0100 Subject: [PATCH] Do not add items with offsets >= 2^14 to the compression table --- ChangeLog | 6 ++++++ dns/name.py | 2 +- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/ChangeLog b/ChangeLog index ef4ab5f4..2db5b022 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2013-04-28 Bob Halley + + * dns/name.py (Name.to_wire): Do not add items with offsets >= 2^14 + to the compression table. Thanks to Casey Deccio for discovering + this bug. + 2013-04-26 Bob Halley * dns/ipv6.py (inet_ntoa): We now comply with RFC 5952 section diff --git a/dns/name.py b/dns/name.py index ed3ffeec..293ab951 100644 --- a/dns/name.py +++ b/dns/name.py @@ -419,7 +419,7 @@ class Name(object): else: if not compress is None and len(n) > 1: pos = file.tell() - if pos < 0xc000: + if pos <= 0x3fff: compress[n] = pos l = len(label) file.write(chr(l)) -- 2.47.3