June 2005
Gentoo - Five Security Advisories
ID: 00484
Ref: 448/2005
Date: 13 June 2005:16:10:48
Version: 1
Title: Gentoo - Five Security Advisories
Abstract:
Vendors affected: Gentoo
Operating systems affected: Gentoo
Applications affected: Gentoo
Title
=====
Gentoo - Five Security Advisories:
1. Ettercap: Format string vulnerability [GLSA 200506-07]
2. GNU shtool, ocaml-mysql: Insecure temporary file creation [GLSA 200506-08]
3. gedit: Format string vulnerability [GLSA 200506-09]
4. LutelWall: Insecure temporary file creation [GLSA 200506-10]
5. Gaim: Denial of Service vulnerabilities [GLSA 200506-11]
Detail
======
Security Advisory summaries:
1. A format string vulnerability in Ettercap could allow a remote attacker
to execute arbitrary code.
2. GNU shtool and ocaml-mysql are vulnerable to symlink attacks,
potentially allowing a local user to overwrite arbitrary files.
3. gedit suffers from a format string vulnerability that could allow
arbitrary code execution.
4. LutelWall is vulnerable to symlink attacks, potentially allowing a
local user to overwrite arbitrary files.
5. Gaim contains two remote Denial of Service vulnerabilities.
Security Advisory content follows:
1.
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Gentoo Linux Security Advisory GLSA 200506-07
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http://security.gentoo.org/
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Severity: High
Title: Ettercap: Format string vulnerability
Date: June 11, 2005
Bugs: #94474
ID: 200506-07
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Synopsis
========
A format string vulnerability in Ettercap could allow a remote attacker
to execute arbitrary code.
Background
==========
Ettercap is a suite of tools for content filtering, sniffing and man in
the middle attacks on a LAN.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-analyzer/ettercap < 0.7.3 >= 0.7.3
Description
===========
The curses_msg function of Ettercap's Ncurses-based user interface
insecurely implements formatted printing.
Impact
======
A remote attacker could craft a malicious network flow that would
result in executing arbitrary code with the rights of the user running
the Ettercap tool, which is often root.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Ettercap users should upgrade to the latest available version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/ettercap-0.7.3"
References
==========
[ 1 ] CAN-2005-1796
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1796
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200506-07.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 2005 Gentoo Foundation, 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/2.0
2.
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Gentoo Linux Security Advisory GLSA 200506-08
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http://security.gentoo.org/
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Severity: Normal
Title: GNU shtool, ocaml-mysql: Insecure temporary file creation
Date: June 11, 2005
Bugs: #93782, #93784
ID: 200506-08
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Synopsis
========
GNU shtool and ocaml-mysql are vulnerable to symlink attacks,
potentially allowing a local user to overwrite arbitrary files.
Background
==========
GNU shtool is a compilation of small shell scripts into a single shell
tool. The ocaml-mysql package includes the GNU shtool code.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-util/shtool < 2.0.1-r2 >= 2.0.1-r2
2 dev-ml/ocaml-mysql < 1.0.3-r1 >= 1.0.3-r1
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------
Description
===========
Eric Romang has discovered that GNU shtool insecurely creates temporary
files with predictable filenames (CAN-2005-1751). On closer inspection,
Gentoo Security discovered that the shtool temporary file, once
created, was being reused insecurely (CAN-2005-1759).
Impact
======
A local attacker could create symbolic links in the temporary files
directory, pointing to a valid file somewhere on the filesystem. When a
GNU shtool script is executed, this would result in the file being
overwritten with the rights of the user running the script, which could
be the root user.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All GNU shtool users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-util/shtool-2.0.1-r2"
All ocaml-mysql users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-ml/ocaml-mysql-1.0.3-r1"
References
==========
[ 1 ] CAN-2005-1751
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1751
[ 2 ] CAN-2005-1759
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1759
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200506-08.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 2005 Gentoo Foundation, 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/2.0
3.
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Gentoo Linux Security Advisory GLSA 200506-09
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http://security.gentoo.org/
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Severity: Normal
Title: gedit: Format string vulnerability
Date: June 11, 2005
Bugs: #93352
ID: 200506-09
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Synopsis
========
gedit suffers from a format string vulnerability that could allow
arbitrary code execution.
Background
==========
gedit is the official text editor of the GNOME desktop environement.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-editors/gedit < 2.10.3 >= 2.10.3
Description
===========
A format string vulnerability exists when opening files with names
containing format specifiers.
Impact
======
A specially crafted file with format specifiers in the filename can
cause arbitrary code execution.
Workaround
==========
There are no known workarounds at this time.
Resolution
==========
All gedit users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-editors/gedit-2.10.3"
References
==========
[ 1 ] BugTraq ID 13699
http://www.securityfocus.com/bid/13699
[ 2 ] gedit 10.3 Release Notes
http://mail.gnome.org/archives/gnome-announce-list/2005-June/msg00006.html
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200506-09.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 2005 Gentoo Foundation, 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/2.0
4.
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Gentoo Linux Security Advisory GLSA 200506-10
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http://security.gentoo.org/
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Severity: Normal
Title: LutelWall: Insecure temporary file creation
Date: June 11, 2005
Bugs: #95378
ID: 200506-10
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Synopsis
========
LutelWall is vulnerable to symlink attacks, potentially allowing a
local user to overwrite arbitrary files.
Background
==========
LutelWall is a high-level Linux firewall configuration tool.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-firewall/lutelwall < 0.98 >= 0.98
Description
===========
Eric Romang has discovered that the new_version_check() function in
LutelWall insecurely creates a temporary file when updating to a new
version.
Impact
======
A local attacker could create symbolic links in the temporary file
directory, pointing to a valid file somewhere on the filesystem. When
the update script is executed (usually by the root user), this would
result in the file being overwritten with the rights of this user.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All LutelWall users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-firewall/lutelwall-0.98"
References
==========
[ 1 ] CAN-2005-1879
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1879
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200506-10.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 2005 Gentoo Foundation, 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/2.0
5.
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Gentoo Linux Security Advisory GLSA 200506-11
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http://security.gentoo.org/
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Severity: Normal
Title: Gaim: Denial of Service vulnerabilities
Date: June 12, 2005
Bugs: #95347
ID: 200506-11
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Synopsis
========
Gaim contains two remote Denial of Service vulnerabilities.
Background
==========
Gaim is a full featured instant messaging client which handles a
variety of instant messaging protocols.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-im/gaim < 1.3.1 >= 1.3.1
Description
===========
Jacopo Ottaviani discovered a vulnerability in the Yahoo! file transfer
code when being offered files with names containing non-ASCII
characters (CAN-2005-1269).
Hugo de Bokkenrijder discovered a vulnerability when receiving
malformed MSN messages (CAN-2005-1934).
Impact
======
Both vulnerabilities cause Gaim to crash, resulting in a Denial of
Service.
Workaround
==========
There are no known workarounds at this time.
Resolution
==========
All Gaim users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-im/gaim-1.3.1"
References
==========
[ 1 ] Gaim Vulnerability: Remote Yahoo! crash
http://gaim.sourceforge.net/security/?id=18
[ 2 ] Gaim Vulnerability: MSN Remote DoS
http://gaim.sourceforge.net/security/?id=19
[ 3 ] CAN-2005-1269
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1269
[ 4 ] CAN-2005-1934
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1934
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200506-11.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 2005 Gentoo Foundation, 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/2.0