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Bug#852034: marked as done (libical: CVE-2016-9584: heap use-after-free)

Your message dated Sat, 13 Apr 2019 16:53:09 +0000
with message-id <[🔎] E1hFLtt-000J7z-Da@fasolo.debian.org>
and subject line Bug#926589: Removed package(s) from unstable
has caused the Debian Bug report #852034,
regarding libical: CVE-2016-9584: heap use-after-free
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
852034: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=852034
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Source: libical
Version: 1.0-1.3
Severity: important
Tags: security upstream

Hi,

the following vulnerability was published for libical.

CVE-2016-9584[0]:
| libical allows remote attackers to cause a denial of service
| (use-after-free) and possibly read heap memory via a crafted ics file.

The SuSE bugzilla entry contains a helper paerser which can be used to
trigger the issue, with the read62.ics provided by Agustin Mista (but
it is not public, and needs to be requested to Agustin Mista
currently, should ideally be made public by the reporter though).

The issue is then reproducible under valgrind with both 1.0-1.3 and
2.0.0-0.5.

==956== Memcheck, a memory error detector
==956== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==956== Using Valgrind-3.12.0 and LibVEX; rerun with -h for copyright info
==956== Command: ./icaltestparser ./read62.ics
==956== 
==956== Invalid read of size 1
==956==    at 0x4C2EDA2: strlen (vg_replace_strmem.c:454)
==956==    by 0x50F3DA2: vfprintf (vfprintf.c:1637)
==956==    by 0x51A1975: __vsnprintf_chk (vsnprintf_chk.c:63)
==956==    by 0x51A18D7: __snprintf_chk (snprintf_chk.c:34)
==956==    by 0x4E7D66A: icalreqstattype_as_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E7E559: icalvalue_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E7186A: icalproperty_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AA67: icalcomponent_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AAB7: icalcomponent_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AB75: icalcomponent_as_ical_string (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B95: main (icaltestparser.c:117)
==956==  Address 0x849c2a4 is 4 bytes inside a block of size 66 free'd
==956==    at 0x4C2CDDB: free (vg_replace_malloc.c:530)
==956==    by 0x4E70059: icalparser_add_line (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B7E: main (icaltestparser.c:112)
==956==  Block was alloc'd at
==956==    at 0x4C2DBC5: calloc (vg_replace_malloc.c:711)
==956==    by 0x4E6E1AD: icalmemory_new_buffer (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6F165: ??? (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E700A4: icalparser_add_line (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B7E: main (icaltestparser.c:112)
==956== 
==956== Invalid read of size 1
==956==    at 0x4C2EDB4: strlen (vg_replace_strmem.c:454)
==956==    by 0x50F3DA2: vfprintf (vfprintf.c:1637)
==956==    by 0x51A1975: __vsnprintf_chk (vsnprintf_chk.c:63)
==956==    by 0x51A18D7: __snprintf_chk (snprintf_chk.c:34)
==956==    by 0x4E7D66A: icalreqstattype_as_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E7E559: icalvalue_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E7186A: icalproperty_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AA67: icalcomponent_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AAB7: icalcomponent_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AB75: icalcomponent_as_ical_string (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B95: main (icaltestparser.c:117)
==956==  Address 0x849c2a5 is 5 bytes inside a block of size 66 free'd
==956==    at 0x4C2CDDB: free (vg_replace_malloc.c:530)
==956==    by 0x4E70059: icalparser_add_line (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B7E: main (icaltestparser.c:112)
==956==  Block was alloc'd at
==956==    at 0x4C2DBC5: calloc (vg_replace_malloc.c:711)
==956==    by 0x4E6E1AD: icalmemory_new_buffer (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6F165: ??? (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E700A4: icalparser_add_line (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B7E: main (icaltestparser.c:112)
==956== 
==956== Invalid read of size 1
==956==    at 0x4C330A8: __GI_mempcpy (vg_replace_strmem.c:1518)
==956==    by 0x511FBFD: _IO_default_xsputn (genops.c:438)
==956==    by 0x50F3BDA: vfprintf (vfprintf.c:1637)
==956==    by 0x51A1975: __vsnprintf_chk (vsnprintf_chk.c:63)
==956==    by 0x51A18D7: __snprintf_chk (snprintf_chk.c:34)
==956==    by 0x4E7D66A: icalreqstattype_as_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E7E559: icalvalue_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E7186A: icalproperty_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AA67: icalcomponent_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AAB7: icalcomponent_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AB75: icalcomponent_as_ical_string (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B95: main (icaltestparser.c:117)
==956==  Address 0x849c2e0 is 64 bytes inside a block of size 66 free'd
==956==    at 0x4C2CDDB: free (vg_replace_malloc.c:530)
==956==    by 0x4E70059: icalparser_add_line (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B7E: main (icaltestparser.c:112)
==956==  Block was alloc'd at
==956==    at 0x4C2DBC5: calloc (vg_replace_malloc.c:711)
==956==    by 0x4E6E1AD: icalmemory_new_buffer (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6F165: ??? (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E700A4: icalparser_add_line (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B7E: main (icaltestparser.c:112)
==956== 
==956== Invalid read of size 1
==956==    at 0x4C330B8: __GI_mempcpy (vg_replace_strmem.c:1518)
==956==    by 0x511FBFD: _IO_default_xsputn (genops.c:438)
==956==    by 0x50F3BDA: vfprintf (vfprintf.c:1637)
==956==    by 0x51A1975: __vsnprintf_chk (vsnprintf_chk.c:63)
==956==    by 0x51A18D7: __snprintf_chk (snprintf_chk.c:34)
==956==    by 0x4E7D66A: icalreqstattype_as_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E7E559: icalvalue_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E7186A: icalproperty_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AA67: icalcomponent_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AAB7: icalcomponent_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AB75: icalcomponent_as_ical_string (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B95: main (icaltestparser.c:117)
==956==  Address 0x849c2de is 62 bytes inside a block of size 66 free'd
==956==    at 0x4C2CDDB: free (vg_replace_malloc.c:530)
==956==    by 0x4E70059: icalparser_add_line (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B7E: main (icaltestparser.c:112)
==956==  Block was alloc'd at
==956==    at 0x4C2DBC5: calloc (vg_replace_malloc.c:711)
==956==    by 0x4E6E1AD: icalmemory_new_buffer (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6F165: ??? (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E700A4: icalparser_add_line (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B7E: main (icaltestparser.c:112)
==956== 
==956== Invalid read of size 1
==956==    at 0x511FB98: _IO_default_xsputn (genops.c:450)
==956==    by 0x50F3BDA: vfprintf (vfprintf.c:1637)
==956==    by 0x51A1975: __vsnprintf_chk (vsnprintf_chk.c:63)
==956==    by 0x51A18D7: __snprintf_chk (snprintf_chk.c:34)
==956==    by 0x4E7D66A: icalreqstattype_as_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E7E559: icalvalue_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E7186A: icalproperty_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AA67: icalcomponent_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AAB7: icalcomponent_as_ical_string_r (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6AB75: icalcomponent_as_ical_string (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B95: main (icaltestparser.c:117)
==956==  Address 0x849f494 is 4 bytes inside a block of size 6 free'd
==956==    at 0x4C2CDDB: free (vg_replace_malloc.c:530)
==956==    by 0x4E70059: icalparser_add_line (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B7E: main (icaltestparser.c:112)
==956==  Block was alloc'd at
==956==    at 0x4C2DBC5: calloc (vg_replace_malloc.c:711)
==956==    by 0x4E6E1AD: icalmemory_new_buffer (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E6F165: ??? (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x4E700A4: icalparser_add_line (in /usr/lib/x86_64-linux-gnu/libical.so.2.0.0)
==956==    by 0x108B7E: main (icaltestparser.c:112)
==956== 
[...]

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2016-9584
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9584
[1] https://bugzilla.novell.com/show_bug.cgi?id=1015964

Regards,
Salvatore

--- End Message ---
--- Begin Message --- 
Version: 2.0.0-4+rm

Dear submitter,

as the package libical has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see https://bugs.debian.org/926589

The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@ftp-master.debian.org.

Debian distribution maintenance software
pp.
Scott Kitterman (the ftpmaster behind the curtain)

--- End Message ---
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