Your message dated Wed, 27 Dec 2017 09:06:03 +0000
with message-id <[email protected]>
and subject line Bug#871722: fixed in unalz 0.65-6
has caused the Debian Bug report #871722,
regarding unalz: null pointer dereference
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.

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-- 
871722: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=871722
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: unalz
Version: 0.65-5

unalz crashes on this file:

  $ printf 'ALZ\1' > crash.alz
  $ unalz -l crash.alz
  unalz v0.65 (2009/04/01)
  Copyright(C) 2004-2009 by [email protected] (http://www.kipple.pe.kr)
  Segmentation fault

Valgrind says it's a null pointer dereference:

  Invalid read of size 4
     at 0x4ACE446: fread (iofread.c:37)
     by 0x10AA67: UNALZ::CUnAlz::FRead(void*, unsigned int, int*) 
(UnAlz.cpp:1649)
     by 0x10ACE4: UNALZ::CUnAlz::ReadAlzFileHeader() (UnAlz.cpp:381)
     by 0x10C72C: UNALZ::CUnAlz::Open(char const*) (UnAlz.cpp:309)
     by 0x109431: main (main.cpp:290)
   Address 0x0 is not stack'd, malloc'd or (recently) free'd

Found using American Fuzzy Lop:
http://lcamtuf.coredump.cx/afl/

-- System Information:
Architecture: i386

Versions of packages unalz depends on:
ii  libbz2-1.0  1.0.6-8.1
ii  libc6       2.24-14
ii  libgcc1     1:7.1.0-13
ii  libstdc++6  7.1.0-13
ii  zlib1g      1:1.2.8.dfsg-5

--
Jakub Wilk

--- End Message ---
--- Begin Message ---
Source: unalz
Source-Version: 0.65-6

We believe that the bug you reported is fixed in the latest version of
unalz, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Changwoo Ryu <[email protected]> (supplier of updated unalz package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])


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Hash: SHA256

Format: 1.8
Date: Wed, 27 Dec 2017 17:38:44 +0900
Source: unalz
Binary: unalz
Architecture: source
Version: 0.65-6
Distribution: unstable
Urgency: medium
Maintainer: Debian Korean L10N <[email protected]>
Changed-By: Changwoo Ryu <[email protected]>
Description:
 unalz      - De-archiver for .alz files
Closes: 871722
Changes:
 unalz (0.65-6) unstable; urgency=medium
 .
   * debian/{control,copyright,watch}: Correct the upstream URL
   * debian/control:
     - l10n-korean team is set as the Maintainer
     - Update Vcs-* to the salsa.debian.org repository
     - Standards-Version: 4.1.2
   * debian/{compat,control}: Use debhelper 10
   * patch: Fix file offset overflow on incomplete files (Closes: #871722)
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Checksums-Sha256:
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unalz_0.65-6.dsc
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unalz_0.65-6.debian.tar.xz
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unalz_0.65-6_source.buildinfo
Files:
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 66464544ce32cab73cdccf9b2e4b79e4 5610 utils optional 
unalz_0.65-6_source.buildinfo

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--- End Message ---

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