Microsoft patches bad browser bug
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A fix for a serious flaw in Microsoft's Internet Explorer has been released early to combat escalating attacks.
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(InfoWorld) - A new update for the Firefox browser fixes an unusual vulnerability that could cause malicious code to run if the browser is launched by Microsoft's Internet Explorer. The critical vulnerability involves Internet Explorer's ability to launch other applications such as Excel or Firefox after a user clicks on a specially written link in a Web page. Explorer does not properly check the syntax of the link, which could allow a malicious link to attack Firefox if launched, according to Mozilla, the open source project that develops Firefox. Microsoft said itÂ didn't feel it was an issue for Explorer. Either way, Firefox's 2.0.0.5 release fixes the problem by now validating incoming data. The update will automatically be pushed out to Firefox 2.0 users via the built-in update system, Mozilla said in an advisory. The update also fixes seven other vulnerabilities, two of which are considered "critical" by Mozilla. One problem, labelled 2007-18, is a memory corruption problem that could cause arbitrary code to run on a machine. The other, 2007-21, could also allow arbitrary code to run.
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Microsoft releases critical Explorer patch VNUNet.com
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The update for the Mozilla browser fixes an unusual vulnerability that could cause malicious code to run if the browser is launched by Microsoft's IE.
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Microsoft Corp. released four critical patches Tuesday to plug security holes in several versions of its Windows operating system, Internet Explorer Web browser and other programs.
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(InfoWorld) - Microsoft Corp. has rolled out its monthly security updates for December, patching critical flaws in Internet Explorer, Windows Media Format, and the Visual Studio 2005 development software. The seven security patches address 11 bugs, including two in the Windows Media Player software. However, no fixes were provided for two Microsoft Word flaws that have been used in a small number of attacks during the past week. Microsoft had said it would release only six patches on Tuesday, but the company added the Windows Media Format update at the last minute, after reports of attacks based on this vulnerability began surfacing. The Windows Media Format is used by Microsoft's Windows Media Player software. In late November, security vendors warned that a buffer overflow error could occur when the Windows Media Player processed ".asx" (Advanced Stream Redirector) media files, meaning that users would first need to be tricked into opening a malicious media file for the attack to work. In its update Tuesday, Microsoft also patched a similar bug in the way the media player processes ".asf" (Advanced Systems Format) files. The Internet Explorer patch fixes four bugs. It is also rated critical, and is noteworthy because some of these bugs will probably begin to be exploited by hackers by week's end, said Gunter Ollmann, director of IBM Corp.'s Internet Security System's X-Force threat analysis service. Enterprise administrators should also pay close attention to an SNMP (Simple Network Monitoring Protocol) patch issued Tuesday, Ollmann said. Microsoft has rated this patch as "important," rather than critical because SNMP is normally blocked at the firewall and turned off by default on Windows systems. However, it is widely deployed as part of the network monitoring infrastructure in the enterprise, and is often used on critical servers, Ollmann said. Ollmann believes this SNMP patch is the "most important" update for enterprise customers. "Since the service is widely deployed in the enterprise and since it's commonly deployed on servers, we think this would be an important attack vector for enterprises," he said. The remaining updates include a "critical" fix for Visual Studio 2005, and "important" updates for Windows and Outlook Express, Microsoft said. Microsoft defines "critical" flaws as bugs that could allow the propagation of an Internet worm without any action on the part of the victim. The company's next set of security updates are due Jan. 9.
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Microsoft Corp. MSFT.O released on  Tuesday a patch for its latest "critical" rated security flaw  affecting its Windows, Office and developer tools software  programs.
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Before the sun set on Microsoft&#39;s Patch Tuesday this month, security firm Secunia discovered a vulnerability in Firefox that malicious hackers could exploit to compromise a user&#39;s system. Here&#39;s the catch: Exploiting the bug depends on interaction between Mozilla&#39;s browser and Microsoft&#39;s Internet Explorer.
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InfoWorld - Microsoft has offered a technical workaround for Internet Explorer users who have found their browsers crashing after installing a recent set of security patches.
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Microsoft Corp. has patched critical flaws in Internet Explorer, Windows Media Player and Visual Basic with its last "Patch Tuesday" release of 2006.
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(InfoWorld) - Microsoft has released its monthly set of security patches , fixing problems in Windows, Internet Explorer and in the SSL (Secure Sockets Layer) software used for secure Web browsing. In total, Microsoft released six sets of patches, called updates, fixing 15 flaws in its products. Four of these updates are rated critical and administrators should patch them as soon as possible, security experts said Tuesday. Many of the flaws that Microsoft patched on Tuesday can be exploited via the Web. In particular the MS07-033 update, which fixes bugs in Internet Explorer and MS07-031 , which addresses a critical flaw in the SSL libraries used by Windows. The SSL flaw is particularly interesting because it affects users who are visiting supposedly trustworthy Web sites, and because it could also affect non-Microsoft browsers like Firefox and Opera, said Amol Sarwate, manager of Qualys, Inc.'s vulnerability research lab. "It will affect all the browsers that call the libraries that are in the Windows operating system," he said. Although Microsoft warned that this flaw could be used by attackers to run unauthorized software on the victim's computer, this would be hard to do. "Attempts to exploit this vulnerability would most likely result in the Internet Web browser or application exiting," Microsoft wrote in its MS07-031 bulletin. "The system would not be able to connect to Web sites or resources using SSL ... until a restart of the system." The two other critical updates are MS07-035 , which fixes a bug in the core Windows operating system's Win32 API (application programming interface), and MS07-034 , which fixes bugs in Outlook Express and Windows Mail. Because MS07-035 could be exploited via the Web, it should also be patched as soon as possible, Sarwate said. The other updates released Tuesday fix less-critical flaws in Windows Vista and Microsoft's Visio drawing software. The Vista update is noteworthy because it marks the first time that Microsoft has patched a flaw that was introduced in the Vista operating system, Sarwate said. Previous Vista patches have repaired "legacy" code that was written for earlier versions of Windows, and then reused in Vista. But the MS07-032 update applies to Vista only. This flaw, rated "moderate" by Microsoft, could allow an attacker to gain unauthorized access to information such as administrative passwords stored within Windows.
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SEATTLE  - Microsoft on Monday said it plans to take the unusual step of issuing a security patch as quickly as possible to stem a newly discovered flaw in its Internet Explorer Web browser that cybercrooks have already begun exploiting to take control of victims' computers.
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In a seeming replay of the uproar around last year's WMF vulnerability, a third-party patch has been released for the VML hole in Internet Explorer.
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Microsoft has released an update to Internet Explorer to fix a security flaw that was discovered a month ago and has since been exploited to attack users.
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The latest beta of Mozilla's browser has been up and running for
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Unpatched bugs that could allow attackers to take over Windows systems via Internet Explorer. The bugs were discovered by security company FrSIRT and reported to Adobe a week ago.
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Microsoft on Wednesday released an update to Internet Explorer (IE) to fix a security flaw that was discovered a month ago and has since been exploited to attack users.