This flaw permitted unauthenticated, remote attackers to achieve arbitrary code execution. By sending a specially crafted DNS query, attackers could gain SYSTEM-level privileges on affected servers.
It impacted Windows 2000 Server SP4 and Windows Server 2003 SP1/SP2. Microsoft addressed this severe Remote Code Execution (RCE) vulnerability with security bulletin MS07-029, urging immediate patching to prevent full compromise of affected DNS infrastructure.
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National Cyber Alert System
Technical Cyber Security Alert TA07-151A
Mozilla Updates for Multiple Vulnerabilities
Original release date: May 31, 2007
Last revised: --
Source: US-CERT
Systems Affected
* Mozilla Firefox
* Mozilla Thunderbird
* Mozilla SeaMonkey
* Netscape Browser
Other products based on Mozilla components may also be affected.
Overview
The Mozilla web browser and derived products contain several
vulnerabilities, the most severe of which could allow a remote
attacker to execute arbitrary code on an affected system.
I. Description
Mozilla has released new versions of Firefox, Thunderbird, and
SeaMonkey to address several vulnerabilities. Further details about
these vulnerabilities are available from Mozilla and the Vulnerability
Notes Database. An attacker could exploit these vulnerabilities by
convincing a user to view a specially-crafted HTML document, such as a
web page or an HTML email message.
Support for Firefox 1.5 is scheduled to end in June 2007. According to
Mozilla:
Firefox 1.5.0.x will be maintained with security and stability
updates until June 2007. All users are strongly encouraged to
upgrade to Firefox 2.
II. Impact
While the impacts of the individual vulnerabilities vary, the most
severe could allow a remote, unauthenticated attacker to execute
arbitrary code on a vulnerable system. An attacker may also be able to
cause a denial of service.
III. Solution
Upgrade
These vulnerabilities are addressed in Mozilla Firefox 2.0.0.4,
Firefox 1.5.0.12, Thunderbird 2.0.0.4, Thunderbird 1.5.0.12,
SeaMonkey 1.0.9, SeaMonkey 1.1.2. By default, Mozilla Firefox,
Thunderbird, and SeaMonkey automatically check for updates.
IV. References
* US-CERT Vulnerability Notes -
<http://www.kb.cert.org/vuls/byid?searchview&query=mozilla_20070531>
* Securing Your Web Browser -
<http://www.us-cert.gov/reading_room/securing_browser/browser_security.html#Mozilla_Firefox>
* Mozilla Foundation Security Advisories -
<http://www.mozilla.org/security/announce/>
* Known Vulnerabilities in Mozilla Products -
<http://www.mozilla.org/projects/security/known-vulnerabilities.html>
* Mozilla Hall of Fame -
<http://www.mozilla.org/university/HOF.html>
* Site Controls -
<http://browser.netscape.com/ns8/help/options-site.jsp>
____________________________________________________________________
The most recent version of this document can be found at:
<http://www.us-cert.gov/cas/techalerts/TA07-151A.html>
____________________________________________________________________
Feedback can be directed to US-CERT Technical Staff. Please send
email to <
subject.
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Produced 2007 by US-CERT, a government organization.
Terms of use:
<http://www.us-cert.gov/legal.html>
____________________________________________________________________
Revision History
May 31, 2007: Initial release
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