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

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

Affected Packages

www-client/mozilla on all architectures
Affected versions < 1.7.5
Unaffected versions >= 1.7.5
www-client/mozilla-bin on all architectures
Affected versions < 1.7.5
Unaffected versions >= 1.7.5
www-client/mozilla-firefox on all architectures
Affected versions < 1.0
Unaffected versions >= 1.0
www-client/mozilla-firefox-bin on all architectures
Affected versions < 1.0
Unaffected versions >= 1.0
mail-client/mozilla-thunderbird on all architectures
Affected versions < 0.9
Unaffected versions >= 0.9
mail-client/mozilla-thunderbird-bin on all architectures
Affected versions < 0.9
Unaffected versions >= 0.9

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.

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

Release Date
January 05, 2005

Latest Revision
December 30, 2007: 03

Severity
normal

Exploitable
remote and local

Bugzilla entries