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and subject line Bug#328141: fixed in util-linux 2.12p-8
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From: Paul Szabo <[EMAIL PROTECTED]>
To: Debian Bug Tracking System <[EMAIL PROTECTED]>
Subject: mount: umount -r drops nosuid flag
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Date: Wed, 14 Sep 2005 06:22:00 +1000
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version=2.60-bugs.debian.org_2005_01_02
Package: mount
Version: 2.11n-7
Severity: critical
File: /bin/umount
Tags: security
Justification: root security hole
Please see
http://www.securityfocus.com/archive/1/410333
for details. Verified (that noexec flag is gone) as follows:
psz:~$ id
uid=1001(psz) gid=1001(amstaff) groups=1001(amstaff),24(cdrom),25(floppy)
psz:~$ grep cdrom /etc/fstab
/dev/cdrom /cdrom iso9660 ro,user,noauto 0 0
psz:~$ /bin/mount /cdrom
psz:~$ /bin/mount | grep cdrom
/dev/cdrom on /cdrom type iso9660 (ro,noexec,nosuid,nodev,user=psz)
psz:~$ /cdrom/ML3/ML_30_013_Linuxi.bin
bash: /cdrom/ML3/ML_30_013_Linuxi.bin: /bin/sh: bad interpreter: Permission
denied
psz:~$ cd /cdrom
psz:/cdrom$ /bin/umount -r /cdrom
umount: /dev/cdrom busy - remounted read-only
psz:/cdrom$ cd
psz:~$ /bin/mount | grep cdrom
/dev/cdrom on /cdrom type iso9660 (ro)
psz:~$ /cdrom/ML3/ML_30_013_Linuxi.bin
Unpacking to /tmp/ML.tar...
[ctrl-C]
psz:~$ /bin/umount -r /cdrom
psz:~$
-- System Information
Debian Release: 3.0
Architecture: i386
Kernel: Linux pisa.maths.usyd.edu.au 2.4.27-smssvr1.6 #1 SMP Wed Aug 24
12:16:31 EST 2005 i686
Locale: LANG=C, LC_CTYPE=C
Versions of packages mount depends on:
ii libc6 2.2.5-11.8 GNU C Library: Shared libraries an
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id 1EI5sI-0001db-00; Wed, 21 Sep 2005 07:47:06 -0700
From: LaMont Jones <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
X-Katie: $Revision: 1.56 $
Subject: Bug#328141: fixed in util-linux 2.12p-8
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Sender: Archive Administrator <[EMAIL PROTECTED]>
Date: Wed, 21 Sep 2005 07:47:06 -0700
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autolearn=no version=2.60-bugs.debian.org_2005_01_02
Source: util-linux
Source-Version: 2.12p-8
We believe that the bug you reported is fixed in the latest version of
util-linux, which is due to be installed in the Debian FTP archive:
bsdutils_2.12p-8_i386.deb
to pool/main/u/util-linux/bsdutils_2.12p-8_i386.deb
fdisk-udeb_2.12p-8_i386.udeb
to pool/main/u/util-linux/fdisk-udeb_2.12p-8_i386.udeb
mount_2.12p-8_i386.deb
to pool/main/u/util-linux/mount_2.12p-8_i386.deb
util-linux-locales_2.12p-8_all.deb
to pool/main/u/util-linux/util-linux-locales_2.12p-8_all.deb
util-linux_2.12p-8.diff.gz
to pool/main/u/util-linux/util-linux_2.12p-8.diff.gz
util-linux_2.12p-8.dsc
to pool/main/u/util-linux/util-linux_2.12p-8.dsc
util-linux_2.12p-8_i386.deb
to pool/main/u/util-linux/util-linux_2.12p-8_i386.deb
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.
LaMont Jones <[EMAIL PROTECTED]> (supplier of updated util-linux 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: Wed, 21 Sep 2005 08:36:17 -0600
Source: util-linux
Binary: util-linux fdisk-udeb util-linux-locales bsdutils mount
Architecture: all i386 source
Version: 2.12p-8
Distribution: unstable
Urgency: high
Maintainer: LaMont Jones <[EMAIL PROTECTED]>
Changed-By: LaMont Jones <[EMAIL PROTECTED]>
Description:
bsdutils - Basic utilities from 4.4BSD-Lite
fdisk-udeb - Partition a hard drive (manual, cfdisk)
mount - Tools for mounting and manipulating filesystems
util-linux - Miscellaneous system utilities
util-linux-locales - Locales files for util-linux
Closes: 328141 329063
Changes:
util-linux (2.12p-8) unstable; urgency=high
.
* if /etc/adjtime is a dangling symlink, don't use it in hwclock*.sh
* Applited patch by Max Vozeler to fix a local privilege escalation
vulnerability in umount -r [debian/patches/51security_CAN-2005-2876.dpatch]
Closes: #328141, #329063
Files:
05dc3e83e483b500a188941d4ec58ca0 700 base required util-linux_2.12p-8.dsc
262121de89e4a4d5da64a9a3043978a9 66258 base required bsdutils_2.12p-8_i386.deb
9ae6656ec71c88fd133b065491ab5079 76281 base required util-linux_2.12p-8.diff.gz
a7c20de195c91631b873ee77745f66f2 140396 base required mount_2.12p-8_i386.deb
d415a1a9db5caa576f2b674183aba292 369144 base required
util-linux_2.12p-8_i386.deb
f07516de7a286e0d396aa9dafa95fc3b 1072692 utils optional
util-linux-locales_2.12p-8_all.deb
f28485490ec5b6208c4850bdec4d2fc0 537254 debian-installer extra
fdisk-udeb_2.12p-8_i386.udeb
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