Your message dated Tue, 21 Feb 2006 07:17:10 -0800
with message-id <[EMAIL PROTECTED]>
and subject line Bug#289784: fixed in xshisen 1.51-1-2
has caused the attached Bug report to be marked as done.
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--- Begin Message ---
Subject: xshisen: buffer overflow when handling GECOS field
Package: xshisen
Version: 1.51-1-1
Severity: important
Tags: security patch
Hello,
I have found a buffer overflow in xshisen. It copies data from a user's GECOS
field in
/etc/passwd to a char array. In the rather unlikely event where that GECOS
field is
about 160 bytes long, the char array is overflowed which can be used to get a
shell with
gid games. I have attached a patch that fixes this problem.
Here is a line from my /etc/passwd file (after wrapping it) that causes this
bug:
metaur:x:1000:1000:UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUU,,,:/home/metaur:/bin/bash
I have Cc'ed the upstream developer and Naddy who's involved with FreeBSD's
Ports
Collection. They might also want to check out some earlier buffer overflows in
xshisen
that Steve Kemp found in 2003: http://bugs.debian.org/213957
// Ulf Harnhammar for the Debian Security Audit Project
http://www.debian.org/security/audit/
-- System Information:
Debian Release: 3.1
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.8-1-686
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
Versions of packages xshisen depends on:
ii libc6 2.3.2.ds1-20 GNU C Library: Shared libraries an
ii libgcc1 1:3.4.3-6 GCC support library
ii libstdc++5 1:3.3.5-5 The GNU Standard C++ Library v3
ii libxaw7 4.3.0.dfsg.1-10 X Athena widget set library
ii xlibs 4.3.0.dfsg.1-10 X Keyboard Extension (XKB) configu
-- no debconf information
--
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xshisen.bufoflow.patch
Description: Binary data
--- End Message ---
--- Begin Message ---
Source: xshisen
Source-Version: 1.51-1-2
We believe that the bug you reported is fixed in the latest version of
xshisen, which is due to be installed in the Debian FTP archive:
xshisen_1.51-1-2.diff.gz
to pool/main/x/xshisen/xshisen_1.51-1-2.diff.gz
xshisen_1.51-1-2.dsc
to pool/main/x/xshisen/xshisen_1.51-1-2.dsc
xshisen_1.51-1-2_i386.deb
to pool/main/x/xshisen/xshisen_1.51-1-2_i386.deb
xshisen_1.51-1.orig.tar.gz
to pool/main/x/xshisen/xshisen_1.51-1.orig.tar.gz
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.
Zak B. Elep <[EMAIL PROTECTED]> (supplier of updated xshisen 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])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Format: 1.7
Date: Tue, 21 Feb 2006 22:35:26 +0800
Source: xshisen
Binary: xshisen
Architecture: source i386
Version: 1.51-1-2
Distribution: unstable
Urgency: high
Maintainer: Zak B. Elep <[EMAIL PROTECTED]>
Changed-By: Zak B. Elep <[EMAIL PROTECTED]>
Description:
xshisen - Shisen-sho puzzle game for X11
Closes: 213957 289784 291279 291613 292065 346854
Changes:
xshisen (1.51-1-2) unstable; urgency=low
.
* New maintainer (as agreed with former maintainer; see
http://lists.debian.org/debian-devel/2006/02/msg00007.html)
* Fix strange source packaging problem (Closes: #291279)
* debian/control:
- Changed build system to CDBS + debhelper.
- Bump Standards-Version.
- Bump debhelper Build-Depends to (>= 5) ; updated compat too.
- Slightly touch description; added homepage too.
* debian/patches:
- Added 10_oldfixes.patch . Must sort the various hunks out soon.
Acknowledging NMUs .
- Added 11_manpage_fixes.patch to properly format C and ja manpages.
- Added 20_autotools_update.patch .
* debian/rules:
- Remove extra Japanese manpages as suggested by Nicolas François.
Remove app-defaults for these extra locales too.
* debian/menu:
- Properly quote menu entry.
.
xshisen (1.51-1-1.3) unstable; urgency=low
.
* Non-maintainer upload to do xlibs-dev transition.
* Update debian/control to not build-depend on xlibs-dev anymore. (Closes:
#346854)
* Fix Makefile.in to reflect GNU make behaviour change regarding line
continuations and whitespace.
.
xshisen (1.51-1-1.2) unstable; urgency=HIGH
.
* NMU (at maintainer's request).
* Add NO_GLOBAL_HIGHSCORE define which crudely disables the support for
a global score file.
* Remove sgid bit. Closes: #291613, #292065
* Comment out code in postinst that set up /var/games/xshisen.scores,
but for now, do not delete that file on upgrade.
* Add README.Debian.
.
xshisen (1.51-1-1.1) unstable; urgency=HIGH
.
* NMU
* Fix buffer overflow in handling of GECOS field (CAN-2005-0117)
using patch from Ulf Harnhammar. Closes: #289784
.
xshisen (1.51-1-1) unstable; urgency=high
.
* Non-maintainer upload with consent from Grzegorz.
* Fix a locally exploitable buffer overflow allowing GID(games).
(Closes: #213957)
Files:
9bb81ea94342beafadfc0554cda517aa 660 games optional xshisen_1.51-1-2.dsc
5f0ef1d7811401876de717fd6771fe47 85350 games optional
xshisen_1.51-1.orig.tar.gz
6f2400fcf46f8feecb2f25e2547e2951 79053 games optional xshisen_1.51-1-2.diff.gz
51737af066b25119295ba5c8317ee375 61262 games optional xshisen_1.51-1-2_i386.deb
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--- End Message ---
