Gentoo Linux Security Advisory GLSA 200404-19
Severity: Normal
Title: Buffer overflows and format string vulnerabilities in
LCDproc
Date: April 27, 2004
Bugs: #47340
ID: 200404-19
Synopsis
Multiple remote vulnerabilities have been found in the LCDd
server, allowing execution of arbitrary code with the rights of the
LCDd user.
Background
LCDproc is a program that displays various bits of real-time
system information on an LCD. It makes use of a local server (LCDd)
to collect information to display on the LCD.
Affected packages
| Package | Vulnerable | Unaffected |
| 1 app-misc/lcdproc | <= 0.4.4-r1 | >= 0.4.5 |
Description
Due to insufficient checking of client-supplied data, the LCDd
server is susceptible to two buffer overflows and one string buffer
vulnerability. If the server is configured to listen on all network
interfaces (see the Bind parameter in LCDproc configuration), these
vulnerabilities can be triggered remotely.
Impact
These vulnerabilities allow an attacker to execute code with the
rights of the user running the LCDproc server. By default, this is
the “nobody” user.
Workaround
A workaround is not currently known for this issue. All users
are advised to upgrade to the latest version of the affected
package.
Resolution
LCDproc users should upgrade to version 0.4.5 or later:
# emerge sync
# emerge -pv ">=app-misc/lcdproc-0.4.5"
# emerge ">=app-misc/lcdproc-0.4.5"
References
[ 1 ] LCDproc advisory
http://lists.omnipotent.net/pipermail/lcdproc/2004-April/008884.html
Availability
This GLSA and any updates to it are available for viewing at the
Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200404-19.xml
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or
alternatively, you may file a bug at http://bugs.gentoo.org.
License
Copyright 2004 Gentoo Technologies, Inc; referenced text belongs
to its owner(s).
The contents of this document are licensed under the Creative
Commons – Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/1.0
Gentoo Linux Security Advisory GLSA 200404-20
Severity: Normal
Title: Multiple vulnerabilities in xine
Date: April 27, 2004
Bugs: #45448, #48107, #48108
ID: 200404-20
Synopsis
Several vulnerabilities have been found in xine-ui and xine-lib,
potentially allowing an attacker to overwrite files with the rights
of the user.
Background
xine is a multimedia player allowing to play back CDs, DVDs, and
VCDs and decoding multimedia files like AVI, MOV, WMV, and MP3 from
local disk drives, and displays multimedia streamed over the
Internet. It is available in Gentoo as a reusable library
(xine-lib) with a standard user interface (xine-ui).
Affected packages
| Package | Vulnerable | Unaffected |
| 1 media-video/xine-ui | <= 0.9.23-r1 | >= 0.9.23-r2 |
| 2 media-libs/xine-lib | <= 1_rc3-r2 | >= 1_rc3-r3 |
2 affected packages on all of their supported architectures.
Description
Several vulnerabilities were found in xine-ui and xine-lib. By
opening a malicious MRL in any xine-lib based media player, an
attacker can write arbitrary content to an arbitrary file, only
restricted by the permissions of the user running the application.
By opening a malicious playlist in the xine-ui media player, an
attacker can write arbitrary content to an arbitrary file, only
restricted by the permissions of the user running xine-ui. Finally,
a temporary file is created in an insecure manner by the xine-check
and xine-bugreport scripts, potentially allowing a local attacker
to use a symlink attack.
Impact
These three vulnerabilities may alow an attacker to corrupt
system files, thus potentially leading to a Denial of Service. It
is also theoretically possible, though very unlikely, to use these
vulnerabilities to elevate the privileges of the attacker.
Workaround
There is no known workaround at this time. All users are advised
to upgrade to the latest available versions of xine-ui and
xine-lib.
Resolution
All users of xine-ui or another xine-based player should upgrade
to the latest stable versions:
# emerge sync
# emerge -pv ">=media-video/xine-ui-0.9.23-r2"
# emerge ">=media-video/xine-ui-0.9.23-r2"
# emerge -pv ">=media-libs/xine-lib-1_rc3-r3"
# emerge ">=media-libs/xine-lib-1_rc3-r3"
References
[ 1 ] Xine Security Advisories
http://xinehq.de/index.php/security
[ 2 ] xine-bugreport and xine-check vulnerability
http://nettwerked.mg2.org/advisories/xinebug
Availability
This GLSA and any updates to it are available for viewing at the
Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200404-20.xml
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or
alternatively, you may file a bug at http://bugs.gentoo.org.
License
Copyright 2004 Gentoo Technologies, Inc; referenced text belongs
to its owner(s).
The contents of this document are licensed under the Creative
Commons – Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/1.0
Gentoo Linux Security Advisory GLSA 200404-18
Severity: High
Title: Multiple Vulnerabilities in ssmtp
Date: April 26, 2004
Bugs: #47918, #48435
ID: 200404-18
Synopsis
There are multiple format string vulnerabilities in the SSMTP
package, which may allow an attacker to run arbitrary code with
ssmtp’s privileges (potentially root).
Background
SSMTP is a very simple mail transfer agent (MTA) that relays
mail from the local machine to another SMTP host. It is not
designed to function as a full mail server; its sole purpose is to
relay mail.
Affected packages
| Package | Vulnerable | Unaffected |
| 1 net-mail/ssmtp | <= 2.60.4-r2 | >= 2.60.7 |
Description
There are two format string vulnerabilities inside the
log_event() and die() functions of ssmtp. Strings from outside
ssmtp are passed to various printf()-like functions from within
log_event() and die() as format strings. An attacker could cause a
specially-crafted string to be passed to these functions, and
potentially cause ssmtp to execute arbitrary code.
Impact
If ssmtp connects to a malicious mail relay server, this
vulnerability can be used to execute code with the rights of the
mail sender, including root.
Workaround
There is no known workaround at this time. All users are advised
to upgrade to the latest available version of ssmtp.
Resolution
All users are advised to upgrade to the latest available version
of ssmtp.
# emerge sync
# emerge -pv ">=net-mail/ssmtp-2.60.7"
# emerge ">=net-mail/ssmtp-2.60.7"
References
[ 1 ] Secunia Advisory
http://secunia.com/advisories/11378/
[ 2 ] CVE Reference
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0156
[ 3 ] Debian Advisory
http://lists.debian.org/debian-security-announce/debian-security-announce-2004/msg00084.html
Availability
This GLSA and any updates to it are available for viewing at the
Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200404-18.xml
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or
alternatively, you may file a bug at http://bugs.gentoo.org.
License
Copyright 2004 Gentoo Technologies, Inc; referenced text belongs
to its owner(s).
The contents of this document are licensed under the Creative
Commons – Attribution / Share Alike license.