[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20210321143011.GA22068@hurricane.linuxnetz.de>
Date: Sun, 21 Mar 2021 15:30:11 +0100
From: Robert Scheck <robert@...oraproject.org>
To: Jan Engelhardt <jengelh@...i.de>
Cc: oss-security@...ts.openwall.com
Subject: Re: kopano-core 11.0.1: Remote DoS by memory exhaustion
On Fri, 19 Mar 2021, Jan Engelhardt wrote:
> Initial publication, no CVE number yet (will request).
>
> # Affected versions
>
> * kopano-core 11.0.1 (current head of 11.x branch)
> * kopano-core 10.0.7 (head of 10.x branch)
> * kopano-core 9.1.0 (head of 9.x branch)
> * kopano-core 8.7.16
> * it is believed this affects all versions to date,
> including zarafa 7.2.6, the discontinued predecessor
> project to Kopano, sometimes still in use.
I hereby confirm the trigger, but I would like to correct the affected
versions regarding the Zarafa predecessor project to be more precise for
the CVE:
* Zarafa 7.2.x: Affected (tested myself)
* Zarafa 7.1.x: Affected (tested myself)
* Zarafa 7.0.x: Affected (tested myself)
* Zarafa 6.40.x: Affected (tested myself)
* Zarafa 6.30.x: Affected (tested myself)
* Zarafa 6.2x: Not affected (tested myself)
* Zarafa 6.1x: Not affected (tested myself)
* Zarafa 6.0x: Not affected (tested myself)
* Zarafa 5.2x: Not affected (tested myself)
* Zarafa 5.1x: Most likely not affected (but not tested myself)
* Zarafa 5.0x: Not applicable (no zarafa-ical component)
* Zarafa 4.2x: Not applicable (no zarafa-ical component)
As a conclusion the flaw issue was introduced after Zarafa 6.20.13 Final
(SVN Rev. 19023) and before Zarafa 6.30.0 Beta 1 (SVN Rev. 13713).
Given the crash and error messages in old Zarafa versions look different
than in more recent Zarafa/Kopano versions, here is how it looked for me
when tracking down the version introducing the flaw:
Starting zarafa-ical version 6,30,14,20002 (20002), pid 4937
Pid 4943 caught SIGSEGV (6), traceback:
0x0000000040ad4a /usr/bin/zarafa-ical(_Z7sigsegvi+0x5a) [0x40ad4a]
0x002ac38a5a4ca0 /lib64/libpthread.so.0 [0x2ac38a5a4ca0]
0x002ac38a7e1fc5 /lib64/libc.so.6(gsignal+0x35) [0x2ac38a7e1fc5]
0x002ac38a7e3a70 /lib64/libc.so.6(abort+0x110) [0x2ac38a7e3a70]
0x002ac389ec2d94 /usr/lib64/libstdc++.so.6(_ZN9__gnu_cxx27__verbose_terminate_handlerEv+0x114) [0x2ac389ec2d94]
0x002ac389ec0e46 /usr/lib64/libstdc++.so.6 [0x2ac389ec0e46]
0x002ac389ec0e73 /usr/lib64/libstdc++.so.6 [0x2ac389ec0e73]
0x002ac389ec0f71 /usr/lib64/libstdc++.so.6 [0x2ac389ec0f71]
0x002ac389ec12b9 /usr/lib64/libstdc++.so.6(_Znwm+0x79) [0x2ac389ec12b9]
0x002ac389e9f861 /usr/lib64/libstdc++.so.6(_ZNSs4_Rep9_S_createEmmRKSaIcE+0x21) [0x2ac389e9f861]
0x002ac389ea023b /usr/lib64/libstdc++.so.6(_ZNSs4_Rep8_M_cloneERKSaIcEm+0x2b) [0x2ac389ea023b]
0x002ac389ea0b45 /usr/lib64/libstdc++.so.6(_ZNSs7reserveEm+0x45) [0x2ac389ea0b45]
0x002ac389ea0faf /usr/lib64/libstdc++.so.6(_ZNSs6appendERKSs+0x4f) [0x2ac389ea0faf]
0x0000000041ec94 /usr/bin/zarafa-ical(_ZN4Http13HrReadHeadersEv+0xa4) [0x41ec94]
0x0000000040bcb7 /usr/bin/zarafa-ical(_Z15HrHandleRequestP9ECChannelPP12IMAPISession+0x127) [0x40bcb7]
0x0000000040d612 /usr/bin/zarafa-ical(_Z13HandlerClientPv+0x42) [0x40d612]
0x00000000430bf0 /usr/bin/zarafa-ical(_Z18unix_fork_functionPFPvS_ES_+0x40) [0x430bf0]
0x0000000040ab6d /usr/bin/zarafa-ical(_Z20HrStartHandlerClientP9ECChannelb+0xbd) [0x40ab6d]
0x0000000040b0c5 /usr/bin/zarafa-ical(_Z20HrProcessConnectionsii+0x1c5) [0x40b0c5]
0x0000000040ba14 /usr/bin/zarafa-ical(main+0x484) [0x40ba14]
0x002ac38a7cf9f4 /lib64/libc.so.6(__libc_start_main+0xf4) [0x2ac38a7cf9f4]
0x0000000040a989 /usr/bin/zarafa-ical(__gxx_personality_v0+0x2a9) [0x40a989]
And yes, Zarafa is a discontinued project/product, but sometimes still in
active/production use.
Kind regards
Robert Scheck
Content of type "application/pgp-signature" skipped
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
