I have Windows 7 Professional 64bit Italian edition (without SP1) with Internet Explorer 8.0.7600.16385, in HP HDX16 notebook. Security update KB2585542 was installed automatically two days ago. Since that fix was installed, Internet Explorer has random crashes when opening sites, not only https sites. The crashes are random, one time a website crash IE, the second attempt it load the page correctly... Before this update I had no crashes in IE and my system was ok. KB2585542 is the only patch installed. I saw that many users had different problems with this update, so Microsoft should "fix the fix" as soon as possible... PS: sometimes I use Firefox 3.6.25 for browsing sites, and since I installed the patch Firefox has random crashes too. I know Firefox is not supported by Microsoft, but the thing that a security patch causes crashes on both IE and Firefox should put the attention to the fact that this patch has a real trouble.

If it could help to find the problem, here the details of last two crashes (just few minutes ago): IE8: Nome dell'applicazione che ha generato l'errore: iexplore.exe, versione: 8.0.7600.16912, timestamp: 0x4eb4a5ea Nome del modulo che ha generato l'errore: ntdll.dll, versione: 6.1.7600.16915, timestamp: 0x4ec49d10 Codice eccezione: 0xc0000005 Offset errore 0x0003a921 ID processo che ha generato l'errore: 0x10ec Ora di avvio dell'applicazione che ha generato l'errore: 0x01ccd68cdf3f67a0 Percorso dell'applicazione che ha generato l'errore: C:\Program Files (x86)\Internet Explorer\iexplore.exe Percorso del modulo che ha generato l'errore: C:\Windows\SysWOW64\ntdll.dll ID segnalazione: 965dc91a-434c-11e1-ae73-002186b36ab8 FFOX: Nome dell'applicazione che ha generato l'errore: firefox.exe, versione: 1.9.2.4363, timestamp: 0x4ee68c41 Nome del modulo che ha generato l'errore: unknown, versione: 0.0.0.0, timestamp: 0x00000000 Codice eccezione: 0xc0000005 Offset errore 0x00000000 ID processo che ha generato l'errore: 0xfd4 Ora di avvio dell'applicazione che ha generato l'errore: 0x01ccd690ecdd50d3 Percorso dell'applicazione che ha generato l'errore: C:\Program Files (x86)\Mozilla Firefox\firefox.exe Percorso del modulo che ha generato l'errore: unknown ID segnalazione: 84b525b7-434c-11e1-ae73-002186b36ab8

It doesn't sound likely that your problem is related to KB2585542 since Firefox doesn't use the change that was made in this release and IE wouldn't use this change on non-https connections. The change made in KB2585542 is to split a record into two records before sending. Microsoft, Google (Chrome), Mozilla and Opera have all made the same change (or are making the change) to split records in order to prevent an attack against HTTPS sessions. Some SSL/TLS (HTTPS) implementations do not correctly receive the records correctly. If installing KB2585542 causes a lack of HTTPS connectivity in some circumstances and not others, then the place to look is on the receiving side of the connection. In some cases, the issue is related to SSL/TLS implementations in web application servers (firewall, load-balancers, etc.). Other examples are VPN solutions that don't handling the record splitting correctly. Arden White Microsoft Corp.[MSFT]

Sam_77, do you by chance have Oracle's VirtualBox software running on your PC? Or perhaps another software that creates a virtual networking adapter? I ask because Microsoft just resolved an issue for me related to KB2585542. After I installed the update, I would get a blue screen everytime I tried to log in to Windows. I ended up getting booted up in Safe Mode with Networking, but even then if I did anything network related -- even try to access our NAS -- I would get a BSOD. I tried uninstalling the update, and rolling back to previous restore point with no luck. I opened an incident with Microsoft support -- we are MSDN partners. Using the memory dump information from the crash, the agent was able to determine that the file "vboxnetflt.sys" was causing the issue. We disabled the service, and booted into normal mode with no problems. I then uninstalled VirtualBox, rebooted, re-installed the KB2585542 update, rebooted, and have had no issues since. I'm just curious to know if you have any software like this installed that may be conflicting. -Jason

Same here, too. W7 Pro 64bit SP1 on Thinkpad X201s, IE9 crashes twice since KB2585542 installed. iexplore.exe 9.0.8112.16421 4d76255d MSHTML.dll 9.0.8112.16440 4eb31d5a c0000005 00324f91 5f4 01cce14916338815 C:\ProgramFiles(x86)\InternetExplorer\iexplore.exe C:\Windows\system32\MSHTML.dll 974acf98-4d3d-11e1-a89d-5cff3506a0ad and iexplore.exe 9.0.8112.16421 4d76255d Microsoft.VisualStudio.QualityT_unloaded 0.0.0.0 4ba20ea0 c0000005 6e0b80d9 c94 01cce2e6a4b0b14d C:\ProgramFiles(x86)\InternetExplorer\iexplore.exe Microsoft.VisualStudio.QualityT 8629e9a3-4edc-11e1-b98c-5cff3506a0ad

Hello all, We've been monitoring several of the compatibility issues related to MS12-006 and have worked with the Microsoft Security Research and Defense team to update a blog post consolidating content about what the vulnerability is, how the update mitigates the vulnerability, and links to several FixIt's designed to help quickly automate workarounds. If you are running into an issue after applying this update, please review the blog and use the FixIt's to help quickly diagnose a compatibility problem. http://blogs.technet.com/b/srd/archive/2011/09/26/is-ssl-broken-more-about-security-advisory-2588513.aspx