Wireshark-bugs: [Wireshark-bugs] [Bug 6043] New: Malformed http field data improperly interprete
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6043
Summary: Malformed http field data improperly interpreted
Product: Wireshark
Version: 1.6.0
Platform: x86
OS/Version: Windows 7
Status: NEW
Severity: Minor
Priority: Low
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: kcullimo@xxxxxxxxxxxxxxx
Created an attachment (id=6524)
--> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=6524)
single packet containing two HTTP subtrees, one undecoded
Build Information:
C:\>wireshark -v
C:\>
wireshark 1.6.0rc2 (SVN Rev 37523 from /trunk-1.6)
Copyright 1998-2011 Gerald Combs <gerald@xxxxxxxxxxxxx> and contributors.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Compiled (32-bit) with GTK+ 2.22.1, with GLib 2.26.1, with WinPcap (version
unknown), with libz 1.2.5, without POSIX capabilities, without libpcre, with
SMI
0.4.8, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS 2.10.3,
with
Gcrypt 1.4.6, with MIT Kerberos, with GeoIP, with PortAudio V19-devel (built
Jun
2 2011), with AirPcap.
Running on 32-bit Windows 7, build 7600, with WinPcap version 4.1.2 (packet.dll
version 4.1.0.2001), based on libpcap version 1.0 branch 1_0_rel0b (20091008),
GnuTLS 2.10.3, Gcrypt 1.4.6, with AirPcap 4.1.1 build 1838.
Built using Microsoft Visual C++ 9.0 build 21022
--
Packet Details Pane:
2 Hypertext Transfer Protocol trees.
1st one contains subtrees & associated decode information.
2nd one contains the last field of the scheme header, interpreted as raw data.
Presumably, this may well be due to how the ascii string Connection: Keep-Alive
was presented across the atmosphere.
One would expect to encounter the following list of bytes:
(frame byte offset: 546 [decimal])
43:6f:6e:6e:65:63:74:69:6f:6e:3a:20:4b:65:65:70:2d:41:6c:69:76:65
instead, the captured/saved packet contains the following:
43:6f:1d:6e:65:63:74:69:6f:6e:3a:20:4b:65:65:70:2d:41:6c:69:76:65
Clearly, the 3rd hexit/hexit-pair, starting with a "1", falls well outside the
nearly-contiguous range of alphabetic characters, and gets interpreted as a "."
(an all-too-common fate).
During the last Sharkfest's Q&A session, a modest sense of agreement appeared
to emerge that the code could be altered to accommodate these irregularities.
Let me know if the surrounding packets would facilitate a fix (it's the only
packet from that particular stream I was able to capture).
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