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quick crash of asterisk, and a road to a DOS attack if left unfixed.
Attaching to a running asterisk with "telnet hostname 5060", I would input "something", then hit return three times, and asterisk crashes.
I traced it to handle_request_do(), which zeroes out the data (an ast_str ptr) if the string is too short.
Instead of freeing the struct and nulling the pointer, it now just resets it, because this
ast_str is expected by the calling routine to still be there after handle_request_do() returns.
This appears to fix the crash. I assume that it was introduced with ast_str's being adopted. It's a subtle and easy-to-miss sort of problem.
I also found all the places where the req.data is freed, and made sure the ptr is Nulled out as well;
no good leaving bad ptrs laying around-- I didn't need to do this, but it seemed a good thing to do...
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https://origsvn.digium.com/svn/asterisk/branches/1.4
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r112820 | phsultan | 2008-04-04 21:26:15 +0200 (Fri, 04 Apr 2008) | 1 line
Free newly allocated channel before returning
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https://origsvn.digium.com/svn/asterisk/branches/1.4
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r112766 | phsultan | 2008-04-04 19:16:59 +0200 (Fri, 04 Apr 2008) | 7 lines
Prevent call connections when codecs don't match.
(closes issue #10604)
Reported by: keepitcool
Patches:
branch-1.4-10604-2.diff uploaded by phsultan (license 73)
Tested by: phsultan
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https://origsvn.digium.com/svn/asterisk/branches/1.4
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r112711 | file | 2008-04-03 21:52:36 -0300 (Thu, 03 Apr 2008) | 2 lines
Pass in the path to Zaptel for systems that install Zaptel headers in a separate location.
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r112709 | file | 2008-04-03 21:48:01 -0300 (Thu, 03 Apr 2008) | 2 lines
One thing at a time... let's get 1.4 building.
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support is compiled into Asterisk and Zaptel drivers are loaded. This will help people not waste their valuable time debugging side effects.
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https://origsvn.digium.com/svn/asterisk/branches/1.4
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r112599 | mmichelson | 2008-04-03 09:32:20 -0500 (Thu, 03 Apr 2008) | 9 lines
Fix the testing of the "res" variable so that it is more logically correct and
makes the correct warning and debug messages print.
(closes issue #12361)
Reported by: one47
Patches:
chan_zap_deferred_digit.patch uploaded by one47 (license 23)
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recording.
(closes issue #11962)
Reported by: garlew
Patches:
recording.patch uploaded by garlew (license 376)
bug-11962.diff uploaded by snuffy (license 35)
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@112564 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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(closes issue #11142)
Reported by: julianjm
Patches:
chan_misdn_tmpchan_trunk_v1.diff uploaded by julianjm (license 99)
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r112468 | mmichelson | 2008-04-02 12:36:04 -0500 (Wed, 02 Apr 2008) | 13 lines
Fix a race condition in the manager. It is possible that a new manager event
could be appended during a brief time when the manager is not waiting for input.
If an event comes during this period, we need to set an indicator that there is an
event pending so that the manager doesn't attempt to wait forever for an event that
already happened.
(closes issue #12354)
Reported by: bamby
Patches:
manager_race_condition.diff uploaded by bamby (license 430)
(comments added by me)
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we have to clear the debug state or else we will keep spitting out debug even after it has been turned off.
(closes issue #12169)
Reported by: pj
Patches:
12169-debugoff-2.diff uploaded by qwell (license 4)
Tested by: pj
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r112393 | mmichelson | 2008-04-02 09:32:00 -0500 (Wed, 02 Apr 2008) | 6 lines
Ensure that there is no timeout if none is specified.
(closes issue #12349)
Reported by: johnlange
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revealed a problem with the CANMATCH/MATCHMORE modes. Direct matches were getting in the way. Fixed.
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Reported by: falves11
Patches:
12298.patch1 uploaded by murf (license 17)
Tested by: murf
I have hopes that the changes made over the last few days will
finalize and solidify this code. While there are bound to be
small tweaks still needed, I feel that the job (at last) is
somewhat completed. Finally, I had a chance to comprehend how
the scoring of extension patterns was done in the previous
version, and I've come very close to using the exact same
criteria in the new pattern matching code. The left-right
sorting is now replicated in the trie structure itself, such
that the first match found will the 'best' match. Compared
the results against 1.4 for several extensions. Replicated
falves11's setup and it works. Used some devious patterns
provided by jsmith, supplemented with a few of my own.
Looks good.
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(closes issue #12343)
Reported by: travishein
Patches:
app_voicemail_code_convention.patch uploaded by travishein (license 385)
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@112252 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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(issue #12343)
Reported by: travishein
Patches:
app_voicemail_code_documentation.patch uploaded by travishein (license 385)
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https://origsvn.digium.com/svn/asterisk/branches/1.4
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r112209 | file | 2008-04-01 15:02:43 -0300 (Tue, 01 Apr 2008) | 4 lines
Disable Packet2Packet bridging when we need to feed DTMF frames into the core. Some implementations do not like how we switch between things.
(closes issue #12212)
Reported by: bamby
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for a given domain, the hostname and port listed in the SRV record will be used. If no SRV record exists or a SRV lookup is not attempted, the DNS lookup on the specified domain will be performed as normal. Chan_sip has been modified to take advantage of the new SRV support.
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r112204 | file | 2008-04-01 14:43:46 -0300 (Tue, 01 Apr 2008) | 4 lines
Do not pass audio until the remote side has indicated they are providing early media, or if the channel has been answered.
(closes issue #11823)
Reported by: SDamm
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(closes issue #12345)
Reported by: caio1982
Patches:
limit_msg.diff uploaded by caio1982 (license 22)
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https://origsvn.digium.com/svn/asterisk/branches/1.4
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r112138 | mmichelson | 2008-04-01 12:21:21 -0500 (Tue, 01 Apr 2008) | 10 lines
Initialize the __res_state structure used for dns purposes
to all 0's prior to using it. This is due to valgrind's complaints
on issue #12284 as well as an excerpt found in "Description" portion
of the online man page found here:
http://www.iti.cs.tu-bs.de/cgi-bin/UNIXhelp/man-cgi?res_nquery+3RESOLV
(pertains to issue #12284 but does not necessarily close it)
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r112125 | file | 2008-04-01 13:45:14 -0300 (Tue, 01 Apr 2008) | 5 lines
Ensure that we do not exceed the hold's maximum size with a single frame.
(closes issue #12047)
Reported by: fabianoheringer
Tested by: fabianoheringer
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chan_zap, as well.
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(closes issue #12334)
Reported by: ovi
Patches:
12334-asterisk.patch uploaded by dimas (license 88)
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https://origsvn.digium.com/svn/asterisk/branches/1.4
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r112068 | qwell | 2008-03-31 16:48:05 -0500 (Mon, 31 Mar 2008) | 5 lines
Fix a silly infinite loop when choosing an invalid option.
(closes issue #12315)
Reported by: jmls
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(closes issue #12197)
Reported by: juggie
Patches:
12197.diff uploaded by juggie (license 24)
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compilers a wee bit.
(closes issue #12333)
Reported by: ovi
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thread-safe.
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to this code.
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https://origsvn.digium.com/svn/asterisk/branches/1.4
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r111856 | qwell | 2008-03-28 16:45:35 -0500 (Fri, 28 Mar 2008) | 12 lines
Allow gsm to compile correctly on x86 with gcc4 optimizations.
(closes issue #11243)
Reported by: whiskerp
Patches:
11243-maybe-asm.diff uploaded by qwell (license 4)
Tested by: Seggy (IRC)
Note: While I did write this patch, I would not have found this if fossil
had not reported and fixed issue #12253. A huge thanks to him for helping
to (indirectly) find the problem here.
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found
that valgrind no longer complains and that calls do complete correctly.
The fix is along the same lines as before: Make sure the final null terminator gets copied
into the new sip_request's data pointer. Without it, parse_request will read and potentially
write past the end of the string, causing potential crashes.
(closes issue #12284...for real this time!)
reported by falves11
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the proper solution to the problem reported anyway.
(related to issue #12884)
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(same patch as before, I just split this part out)
(close issue #12326)
Reported by: travishein
Patches:
app_voicemail_code_documentation.patch uploaded by travishein (license 385)
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(issue #12326)
Reported by: travishein
Patches:
app_voicemail_code_documentation.patch uploaded by travishein (license 385)
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@111773 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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https://origsvn.digium.com/svn/asterisk/branches/1.4
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r111720 | qwell | 2008-03-28 12:55:05 -0500 (Fri, 28 Mar 2008) | 1 line
Remove unimplemented softkeys. Prompted by issue #12325.
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terminator
for the string to be copied into. This resulted in parse_request reading invalid
memory beyond the end of the string, and in some cases led to crashes. Thanks
to falves11 for providing the valgrind output which led to the closure of this issue.
(closes issue #12284)
Reported by: falves11
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r111658 | qwell | 2008-03-28 11:19:56 -0500 (Fri, 28 Mar 2008) | 8 lines
The file size of WAV49 does not need to be an even number.
(closes issue #12128)
Reported by: mdu113
Patches:
12128-noevenlength.diff uploaded by qwell (license 4)
Tested by: qwell, mdu113
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r111605 | tilghman | 2008-03-28 09:35:45 -0500 (Fri, 28 Mar 2008) | 3 lines
Update debugging text, since Valgrind eliminated the --log-file-exactly option.
(Closes issue #12320)
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