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Gentoo Linux Advisories: OpenOffice.org, ClamAV

May 12, 2004, 03:56 (0 Talkback[s])

Gentoo Linux Security Advisory GLSA 200405-04

http://security.gentoo.org/


Severity: High
Title: OpenOffice.org vulnerability when using DAV servers
Date: May 11, 2004
Bugs: #47926
ID: 200405-04


Synopsis

Several format string vulnerabilities are present in the Neon library included in OpenOffice.org, allowing remote execution of arbitrary code when connected to an untrusted WebDAV server.

Background

OpenOffice.org is an office productivity suite, including word processing, spreadsheets, presentations, drawings, data charting, formula editing, and file conversion facilities.

Affected packages


Package Vulnerable Unaffected
1 app-office/openoffice <= 1.1.1 >= 1.1.1-r1
2 app-office/openoffice <= 1.0.3-r1 >= 1.0.3-r2
3 app-office/openoffice <= 1.1.0-r3 >= 1.1.0-r4
4 app-office/openoffice-ximian <= 1.1.51 >= 1.1.51-r1
5 app-office/openoffice-ximian-bin <= 1.1.52 1.1.51-r1
6 app-office/openoffice-bin <= 1.1.1 1.1.51-r1
-------------------------------------------------------------------
# Package 1 [app-office/openoffice] only applies to X86 users.
# Package 2 [app-office/openoffice] only applies to PPC users.
# Package 3 [app-office/openoffice] only applies to SPARC users.

NOTE: All packages listed without architecture tags apply to all architectures...


6 affected packages

Description

OpenOffice.org includes code from the Neon library in functions related to publication on WebDAV servers. This library is vulnerable to several format string attacks.

Impact

If you use the WebDAV publication and connect to a malicious WebDAV server, this server can exploit these vulnerabilities to execute arbitrary code with the rights of the user running OpenOffice.org.

Workaround

As a workaround, you should not use the WebDAV publication facilities.

Resolution

There is no binary version including the fix yet. All users of the openoffice-bin and ximian-openoffice-bin packages making use of the WebDAV publication functions should upgrade to the latest version of the corresponding source-based package.

openoffice users on the x86 architecture should:

    # emerge sync
    # emerge -pv ">=app-office/openoffice-1.1.1-r1"
    # emerge ">=app-office/openoffice-1.1.1-r1"

openoffice users on the sparc architecture should:

    # emerge sync
    # emerge -pv ">=app-office/openoffice-1.1.0-r3"
    # emerge ">=app-office/openoffice-1.1.0-r3"

openoffice users on the ppc architecture should:

    # emerge sync
    # emerge -pv ">=app-office/openoffice-1.0.3-r1"
    # emerge ">=app-office/openoffice-1.0.3-r1"

openoffice-ximian users should:

    # emerge sync
    # emerge -pv ">=app-office/openoffice-ximian-1.1.51-r1"
    # emerge ">=app-office/openoffice-ximian-1.1.51-r1"

References

[ 1 ] CAN-2004-0179

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0179

[ 2 ] Neon vulnerabilities (GLSA 200405-01)

http://www.gentoo.org/security/en/glsa/glsa-200405-01.xml

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200405-04.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 200405-03

http://security.gentoo.org/


Severity: High
Title: ClamAV VirusEvent parameter vulnerability
Date: May 11, 2004
Bugs: #46264
ID: 200405-03


Synopsis

With a specific configuration (using %f in the VirusEvent parameter), Clam AntiVirus is vulnerable to an attack allowing execution of arbitrary commands.

Background

"Clam AntiVirus is a GPL anti-virus toolkit for UNIX. The main purpose of this software is the integration with mail servers (attachment scanning). The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs are based on a shared library distributed with the Clam AntiVirus package, which you can use with your own software. Most importantly, the virus database is kept up to date."

Affected packages


Package Vulnerable Unaffected
1 net-mail/clamav < 0.70 >= 0.70

Description

The VirusEvent parameter in the clamav.conf configuration file allows to specify a system command to run whenever a virus is found. This system command can make use of the "%f" parameter which is replaced by the name of the file infected. The name of the file scanned is under control of the attacker and is not sufficiently checked. Version 0.70 of clamav disables the use of the "%f" parameter.

Impact

Sending a virus with a malicious file name can result in execution of arbirary system commands with the rights of the antivirus process. Since clamav is often associated to mail servers for email scanning, this attack can be used remotely.

Workaround

You should not use the "%f" parameter in your VirusEvent configuration.

Resolution

All users of Clam AntiVirus should upgrade to the latest stable version:

    # emerge sync
    # emerge -pv ">=net-mail/clamav-0.70"
    # emerge ">=net-mail/clamav-0.70"

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200405-03.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