SUSE has released an updated mc package for SUSE Linux
______________________________________________________________________________
SUSE Security Announcement
Package: mc
Announcement-ID: SuSE-SA:2004:012
Date: Friday, May 14th 2004 16:00 MEST
Affected products: 8.0, 8.1, 8.2, 9.0, 9.1
SuSE Linux Database Server,
SuSE eMail Server III, 3.1
SuSE Linux Enterprise Server 7, 8
SuSE Linux Firewall on CD/Admin host
SuSE Linux Connectivity Server
SuSE Linux Office Server
Vulnerability Type: local privilege escalation
Severity (1-10): 3
SUSE default package: yes
Cross References: CAN-2004-0226
CAN-2004-0231
CAN-2004-0232
Content of this advisory:
1) security vulnerability resolved:
- buffer overflows
- tmp file problems
- format string bugs
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds:
- sharutils
- apache2*
- xine*
- sysconfig
- clamav
- exim
- utempter
- busybox
- monit
- ethereal
- kphone
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
The Midnight Commander (mc) is a file manager for the console.
The mc code is vulnerable to several security related bugs like buffer
overflows, incorrect format string handling and insecure usage of
temporary files.
These bugs can be exploited by local users to gain access to the
privileges of the user running mc.
There is no workaround known other then avoid using mc.
Please download the update package for your distribution and verify its
integrity by the methods listed in section 3) of this announcement.
Then, install the package using the command "rpm -Fhv file.rpm" to apply
the update.
Our maintenance customers are being notified individually. The packages
are being offered to install from the maintenance web.
Intel i386 Platform:
SuSE-9.0:
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/mc-4.6.0-327.i586.rpm
c5ad0c60348bc462db2d71735247ee1d
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/mc-4.6.0-327.i586.patch.rpm
850b02c3908588ae83afd5027add43ec
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/mc-4.6.0-327.src.rpm
71c511d7bfbf7cc285aed54e164e4077
SuSE-8.2:
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/mc-4.6.0-327.i586.rpm
c12550eca593946915b2bf39759e78d1
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/mc-4.6.0-327.i586.patch.rpm
8879832d99052ac11fc40423027f4bb4
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/mc-4.6.0-327.src.rpm
585c3678406be16171b26ceaeb5600c7
SuSE-8.1:
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/mc-4.5.55-758.i586.rpm
4fa2bd194e823ef8dce8b0ee4a7d5707
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/mc-4.5.55-758.i586.patch.rpm
b22258254be06b2493d1ea39a5b97b00
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/mc-4.5.55-758.src.rpm
860f9fc3b3825031b8d7c10fbf793fcd
SuSE-8.0:
ftp://ftp.suse.com/pub/suse/i386/update/8.0/ap1/mc-4.5.55-758.i386.rpm
bdf10b7c25fdececa1f369b0baeaa764
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.0/ap1/mc-4.5.55-758.i386.patch.rpm
7e3c66bb6f257688f858424f164e360d
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/mc-4.5.55-758.src.rpm
46dd268a6e2f7c7596ed45fd9ab03c88
______________________________________________________________________________
2) Pending vulnerabilities in SUSE Distributions and Workarounds:
- sharutils
This update fixes a buffer overflow in shar while handling the '-o'
commandline option. The buffer overflow can be abused to execute
commands remotely in conjunction with other systems (CGI, ...).
New packages are available on our FTP servers.
- apache2/-devel/-doc/-example-pages/-prefork/-perchild/-worker,
apr, libapr0
These updates fix a memory leak in the mod_ssl module of apache2
(CAN-2004-0113), a possible remote DoS attack on accessing rarely used
listening ports (CAN-2004-0174), and a problem with unescaped special
characters in log files that could present a security hazard for terminal
emulators (CAN-2003-0020).
New packages are available on our FTP servers.
- xine, xine-lib, xine-ui
A buffer overflow exists in the xine library. Attackers could execute
arbitrary code as the user utilizing the xine library. More information
can be found on http://www.xinehq.de/index.php/security/XSA-2004-3.
New packages are available on our FTP servers.
- sysconfig
This update fix the restart of the firewall after a dialup connection is
established. Without this restart, all ports are closed on the dialup
interface and the connection seems to be not working.
This bug affects SUSE LINUX 9.1 only.
New packages are available on our FTP servers.
- clamav
The ClamAV project recently changed the format of their virus
definition database files to support detection of new sorts of
viruses. This update is needed to make use of the files in the new
format.
New packages are available on our FTP servers.
- exim
The exim mailer contains a buffer overflow in its header parsing
functions which may allow remote attackers to execute arbitrary code.
Only installations with the "verify=header_syntax" config option enabled
are vulnerable to this attack. SUSE Linux is not configured that
way by default. CAN-2004-0400 has been assigned to this bug.
New packages are available on our FTP servers.
- utempter
This updates addresses a possible symlink attack while using
tty device files. This bug may lead to a local root compromise.
New packages are available on our FTP servers.
- busybox
Busybox does not handle netlink sockets correctly, which allows
local attackers to spoof netlink messages to the busybox process
New packages are available on our FTP servers.
- monit
There exists security vulnerabilities in the monit HTTP interface,
which could allow an attacker in the worst case to gain root access to
the system. This issue only affects monit if monit is started with
http server support.
See http://www.tildeslash.com/monit/secadv_20040305.txt for details.
New packages are available on our FTP servers.
- ethereal
Several buffer overflows in the ethereal code were fixed.
These buffer overflows can be used to gain remote access to a system
where ethereal is running on. (CAN-2004-0176, CAN-2004-0367, CAN-2004-036)
New packages are available on our FTP servers.
- kphone
The kphone update fixes a possible denial-of-service attack in SIP client
code.
New packages are available on our FTP servers.
______________________________________________________________________________
3) standard appendix: authenticity verification, additional information
- Package authenticity verification:
SUSE update packages are available on many mirror ftp servers all over
the world. While this service is being considered valuable and important
to the free and open source software community, many users wish to be
sure about the origin of the package and its content before installing
the package. There are two verification methods that can be used
independently from each other to prove the authenticity of a downloaded
file or rpm package:
1) md5sums as provided in the (cryptographically signed) announcement.
2) using the internal gpg signatures of the rpm package.
1) execute the command
md5sum
after you downloaded the file from a SUSE ftp server or its mirrors.
Then, compare the resulting md5sum with the one that is listed in the
announcement. Since the announcement containing the checksums is
cryptographically signed (usually using the key security@suse.de),
the checksums show proof of the authenticity of the package.
We disrecommend to subscribe to security lists which cause the
email message containing the announcement to be modified so that
the signature does not match after transport through the mailing
list software.
Downsides: You must be able to verify the authenticity of the
announcement in the first place. If RPM packages are being rebuilt
and a new version of a package is published on the ftp server, all
md5 sums for the files are useless.
2) rpm package signatures provide an easy way to verify the authenticity
of an rpm package. Use the command
rpm -v --checksig
to verify the signature of the package, where is the
filename of the rpm package that you have downloaded. Of course,
package authenticity verification can only target an un-installed rpm
package file.
Prerequisites:
a) gpg is installed
b) The package is signed using a certain key. The public part of this
key must be installed by the gpg program in the directory
~/.gnupg/ under the user's home directory who performs the
signature verification (usually root). You can import the key
that is used by SUSE in rpm packages for SUSE Linux by saving
this announcement to a file ("announcement.txt") and
running the command (do "su -" to be root):
gpg --batch; gpg < announcement.txt | gpg --import
SUSE Linux distributions version 7.1 and thereafter install the
key "build@suse.de" upon installation or upgrade, provided that
the package gpg is installed. The file containing the public key
is placed at the top-level directory of the first CD (pubring.gpg)
and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de .
- SUSE runs two security mailing lists to which any interested party may
subscribe:
suse-security@suse.com
- general/linux/SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an email to
suse-security-subscribe@suse.com.
suse-security-announce@suse.com
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an email to
suse-security-announce-subscribe@suse.com.
For general information or the frequently asked questions (faq)
send mail to:
suse-security-info@suse.com or
suse-security-faq@suse.com respectively.
====================================================================
SUSE's security contact is security@suse.com or security@suse.de.
The security@suse.de public key is listed below.
====================================================================
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way. In particular,
it is desired that the clear-text signature shows proof of the
authenticity of the text.
SUSE Linux AG makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.
Type Bits/KeyID Date User ID
pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key
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______________________________________________________________________________
SUSE Security Announcement
Package: mc
Announcement-ID: SuSE-SA:2004:012
Date: Friday, May 14th 2004 16:00 MEST
Affected products: 8.0, 8.1, 8.2, 9.0, 9.1
SuSE Linux Database Server,
SuSE eMail Server III, 3.1
SuSE Linux Enterprise Server 7, 8
SuSE Linux Firewall on CD/Admin host
SuSE Linux Connectivity Server
SuSE Linux Office Server
Vulnerability Type: local privilege escalation
Severity (1-10): 3
SUSE default package: yes
Cross References: CAN-2004-0226
CAN-2004-0231
CAN-2004-0232
Content of this advisory:
1) security vulnerability resolved:
- buffer overflows
- tmp file problems
- format string bugs
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds:
- sharutils
- apache2*
- xine*
- sysconfig
- clamav
- exim
- utempter
- busybox
- monit
- ethereal
- kphone
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
The Midnight Commander (mc) is a file manager for the console.
The mc code is vulnerable to several security related bugs like buffer
overflows, incorrect format string handling and insecure usage of
temporary files.
These bugs can be exploited by local users to gain access to the
privileges of the user running mc.
There is no workaround known other then avoid using mc.
Please download the update package for your distribution and verify its
integrity by the methods listed in section 3) of this announcement.
Then, install the package using the command "rpm -Fhv file.rpm" to apply
the update.
Our maintenance customers are being notified individually. The packages
are being offered to install from the maintenance web.
Intel i386 Platform:
SuSE-9.0:
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/mc-4.6.0-327.i586.rpm
c5ad0c60348bc462db2d71735247ee1d
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/mc-4.6.0-327.i586.patch.rpm
850b02c3908588ae83afd5027add43ec
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/mc-4.6.0-327.src.rpm
71c511d7bfbf7cc285aed54e164e4077
SuSE-8.2:
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/mc-4.6.0-327.i586.rpm
c12550eca593946915b2bf39759e78d1
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/mc-4.6.0-327.i586.patch.rpm
8879832d99052ac11fc40423027f4bb4
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/mc-4.6.0-327.src.rpm
585c3678406be16171b26ceaeb5600c7
SuSE-8.1:
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/mc-4.5.55-758.i586.rpm
4fa2bd194e823ef8dce8b0ee4a7d5707
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/mc-4.5.55-758.i586.patch.rpm
b22258254be06b2493d1ea39a5b97b00
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/mc-4.5.55-758.src.rpm
860f9fc3b3825031b8d7c10fbf793fcd
SuSE-8.0:
ftp://ftp.suse.com/pub/suse/i386/update/8.0/ap1/mc-4.5.55-758.i386.rpm
bdf10b7c25fdececa1f369b0baeaa764
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.0/ap1/mc-4.5.55-758.i386.patch.rpm
7e3c66bb6f257688f858424f164e360d
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/mc-4.5.55-758.src.rpm
46dd268a6e2f7c7596ed45fd9ab03c88
______________________________________________________________________________
2) Pending vulnerabilities in SUSE Distributions and Workarounds:
- sharutils
This update fixes a buffer overflow in shar while handling the '-o'
commandline option. The buffer overflow can be abused to execute
commands remotely in conjunction with other systems (CGI, ...).
New packages are available on our FTP servers.
- apache2/-devel/-doc/-example-pages/-prefork/-perchild/-worker,
apr, libapr0
These updates fix a memory leak in the mod_ssl module of apache2
(CAN-2004-0113), a possible remote DoS attack on accessing rarely used
listening ports (CAN-2004-0174), and a problem with unescaped special
characters in log files that could present a security hazard for terminal
emulators (CAN-2003-0020).
New packages are available on our FTP servers.
- xine, xine-lib, xine-ui
A buffer overflow exists in the xine library. Attackers could execute
arbitrary code as the user utilizing the xine library. More information
can be found on http://www.xinehq.de/index.php/security/XSA-2004-3.
New packages are available on our FTP servers.
- sysconfig
This update fix the restart of the firewall after a dialup connection is
established. Without this restart, all ports are closed on the dialup
interface and the connection seems to be not working.
This bug affects SUSE LINUX 9.1 only.
New packages are available on our FTP servers.
- clamav
The ClamAV project recently changed the format of their virus
definition database files to support detection of new sorts of
viruses. This update is needed to make use of the files in the new
format.
New packages are available on our FTP servers.
- exim
The exim mailer contains a buffer overflow in its header parsing
functions which may allow remote attackers to execute arbitrary code.
Only installations with the "verify=header_syntax" config option enabled
are vulnerable to this attack. SUSE Linux is not configured that
way by default. CAN-2004-0400 has been assigned to this bug.
New packages are available on our FTP servers.
- utempter
This updates addresses a possible symlink attack while using
tty device files. This bug may lead to a local root compromise.
New packages are available on our FTP servers.
- busybox
Busybox does not handle netlink sockets correctly, which allows
local attackers to spoof netlink messages to the busybox process
New packages are available on our FTP servers.
- monit
There exists security vulnerabilities in the monit HTTP interface,
which could allow an attacker in the worst case to gain root access to
the system. This issue only affects monit if monit is started with
http server support.
See http://www.tildeslash.com/monit/secadv_20040305.txt for details.
New packages are available on our FTP servers.
- ethereal
Several buffer overflows in the ethereal code were fixed.
These buffer overflows can be used to gain remote access to a system
where ethereal is running on. (CAN-2004-0176, CAN-2004-0367, CAN-2004-036)
New packages are available on our FTP servers.
- kphone
The kphone update fixes a possible denial-of-service attack in SIP client
code.
New packages are available on our FTP servers.
______________________________________________________________________________
3) standard appendix: authenticity verification, additional information
- Package authenticity verification:
SUSE update packages are available on many mirror ftp servers all over
the world. While this service is being considered valuable and important
to the free and open source software community, many users wish to be
sure about the origin of the package and its content before installing
the package. There are two verification methods that can be used
independently from each other to prove the authenticity of a downloaded
file or rpm package:
1) md5sums as provided in the (cryptographically signed) announcement.
2) using the internal gpg signatures of the rpm package.
1) execute the command
md5sum
after you downloaded the file from a SUSE ftp server or its mirrors.
Then, compare the resulting md5sum with the one that is listed in the
announcement. Since the announcement containing the checksums is
cryptographically signed (usually using the key security@suse.de),
the checksums show proof of the authenticity of the package.
We disrecommend to subscribe to security lists which cause the
email message containing the announcement to be modified so that
the signature does not match after transport through the mailing
list software.
Downsides: You must be able to verify the authenticity of the
announcement in the first place. If RPM packages are being rebuilt
and a new version of a package is published on the ftp server, all
md5 sums for the files are useless.
2) rpm package signatures provide an easy way to verify the authenticity
of an rpm package. Use the command
rpm -v --checksig
to verify the signature of the package, where is the
filename of the rpm package that you have downloaded. Of course,
package authenticity verification can only target an un-installed rpm
package file.
Prerequisites:
a) gpg is installed
b) The package is signed using a certain key. The public part of this
key must be installed by the gpg program in the directory
~/.gnupg/ under the user's home directory who performs the
signature verification (usually root). You can import the key
that is used by SUSE in rpm packages for SUSE Linux by saving
this announcement to a file ("announcement.txt") and
running the command (do "su -" to be root):
gpg --batch; gpg < announcement.txt | gpg --import
SUSE Linux distributions version 7.1 and thereafter install the
key "build@suse.de" upon installation or upgrade, provided that
the package gpg is installed. The file containing the public key
is placed at the top-level directory of the first CD (pubring.gpg)
and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de .
- SUSE runs two security mailing lists to which any interested party may
subscribe:
suse-security@suse.com
- general/linux/SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an email to
suse-security-subscribe@suse.com.
suse-security-announce@suse.com
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an email to
suse-security-announce-subscribe@suse.com.
For general information or the frequently asked questions (faq)
send mail to:
suse-security-info@suse.com or
suse-security-faq@suse.com respectively.
====================================================================
SUSE's security contact is security@suse.com or security@suse.de.
The security@suse.de public key is listed below.
====================================================================
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way. In particular,
it is desired that the clear-text signature shows proof of the
authenticity of the text.
SUSE Linux AG makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.
Type Bits/KeyID Date User ID
pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key
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