GLSA 200501-03: Mozilla, Firefox, Thunderbird: Various vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	Mozilla, Firefox, Thunderbird: Various vulnerabilities
Date:	01/05/2005
Bugs:	#76112, #68976, #70749
ID:	200501-03

Synopsis

Various vulnerabilities were found and fixed in Mozilla-based products, ranging from a potential buffer overflow and temporary files disclosure to anti-spoofing issues.

Background

Mozilla is a popular web browser that includes a mail and newsreader. Mozilla Firefox and Mozilla Thunderbird are respectively the next-generation browser and mail client from the Mozilla project.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
www-client/mozilla	< 1.7.5	>= 1.7.5	All supported architectures
www-client/mozilla-bin	< 1.7.5	>= 1.7.5	All supported architectures
www-client/mozilla-firefox	< 1.0	>= 1.0	All supported architectures
www-client/mozilla-firefox-bin	< 1.0	>= 1.0	All supported architectures
mail-client/mozilla-thunderbird	< 0.9	>= 0.9	All supported architectures
mail-client/mozilla-thunderbird-bin	< 0.9	>= 0.9	All supported architectures

Description

Maurycy Prodeus from isec.pl found a potentially exploitable buffer overflow in the handling of NNTP URLs. Furthermore, Martin (from ptraced.net) discovered that temporary files in recent versions of Mozilla-based products were sometimes stored world-readable with predictable names. The Mozilla Team also fixed a way of spoofing filenames in Firefox's "What should Firefox do with this file" dialog boxes and a potential information leak about the existence of local filenames.

Impact

A remote attacker could craft a malicious NNTP link and entice a user to click it, potentially resulting in the execution of arbitrary code with the rights of the user running the browser. A local attacker could leverage the temporary file vulnerability to read the contents of another user's attachments or downloads. A remote attacker could also design a malicious web page that would allow to spoof filenames if the user uses the "Open with..." function in Firefox, or retrieve information on the presence of specific files in the local filesystem.

Workaround

There is no known workaround at this time.

Resolution

All Mozilla users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/mozilla-1.7.5"

All Mozilla binary users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/mozilla-bin-1.7.5"

All Firefox users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/mozilla-firefox-1.0"

All Firefox binary users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/mozilla-firefox-bin-1.0"

All Thunderbird users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=mail-client/mozilla-thunderbird-0.9"

All Thunderbird binary users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=mail-client/mozilla-thunderbird-bin-0.9"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200501-03.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 https://bugs.gentoo.org.