Category Archives: Flash

February updates from Microsoft

Earlier today, Microsoft released forty-two updates to address fifty-four vulnerabilities in Windows, Internet Explorer, Edge, Flash, and Office software. Fourteen of the vulnerabilities are flagged as critical, and have the potential to be used for remote code execution.

This information was extracted from Microsoft’s Security Update Guide, the rather opaque reservoir into which Microsoft now dumps its update information. Of course Microsoft would be happier if we all just enabled auto-updates, and in fact the monthly patch bulletins are now little more than a link to the SUG and a recommendation to enable auto-updates.

Flash 28.0.0.161 fixes two critical vulnerabilities

Adobe logoAs expected, Adobe has released a new version of Flash that addresses CVE-2018-4878 and another critical vulnerability, CVE-2018-4877. A new security bulletin (APSB18-03) provides additional details.

The new version was made available on February 6. The release notes show that at least one other bug was fixed in Flash 28.0.0.161.

Anyone still using a web browser with Flash enabled should make sure that it’s up to date. CVE-2018-4877 is already being actively exploited.

As usual, Chrome will update itself automatically, and Internet Explorer and Edge will get the new Flash via Windows Update.

New Flash vulnerability already being exploited

Adobe logoOn February 1, Adobe published a security advisory about a critical vulnerability (CVE-2018-4878) in Flash Player 28.0.0.137 and earlier versions. Successful exploitation could allow an attacker to take control of an affected system.

An exploit for CVE-2018-4878 already exists, and is being used in targeted attacks against Windows users. So far, attacks based on this vulnerability have been delivered via Office documents with malicious Flash content as email attachments.

Adobe plans to address this vulnerability next week. Meanwhile, use extreme caution when deciding whether to open email attachments, especially if they appear to be Office documents.

Flash is gradually disappearing from use, but it’s still used enough to make it a tempting target for malicious hackers.

Duo Security: No Patch Yet: Flash Vulnerability Exploited in the Wild

Patch Tuesday for January 2018

This month’s pile of Microsoft patches includes some that help to mitigate the recently-discovered Spectre and Meltdown vulnerabilities in Windows 7 and 8. Windows 10 machines received these updates last week, as soon as they were made available by Microsoft, because of course there’s no way to stop that from happening. Unfortunately for folks running some older AMD processors, the Spectre/Meltdown updates are causing Windows to crash, and Microsoft has now disabled those updates for affected computers.

It gets worse. Many antivirus products use sketchy techniques for blocking, detecting, and removing malware. Some of those activities are incompatible with this month’s Spectre/Meltdown updates for Windows. Microsoft is currently blocking those updates on computers that are missing a special registry setting: the idea is that anti-malware software will set this flag to indicate that the updates are compatible, and safe to install. On my Windows 8.1 computer, Windows Update initially did not show this month’s security-only (KB4056898) or security rollup (KB4056895) updates. That’s because (gasp) I wasn’t running any anti-malware software. To get the update, I re-enabled Windows Defender, which created the missing registry entry, and re-ran Windows Update.

There’s also a special security advisory in this month’s updates, in which Microsoft lays out the Spectre/Meltdown issue, its effect on Microsoft software, and ways to mitigate the associated vulnerabilities.

Back to our regularly-scheduled Patch Tuesday…

The January 2018 update announcement as usual contains zero useful information, serving only as a pointer to the Security Update Guide. Analysis of this month’s guide data shows that there are seventy-two updates, addressing fifty-six vulnerabilities in .NET, Internet Explorer, Edge, Office, Windows, Flash Player, Sharepoint, and SQL Server.

Flash 28.0.0.126

Adobe logoAdobe released a new version of Flash to coincide with yesterday’s Microsoft updates. Flash 28.0.0.126 fixes a few minor issues and one security vulnerability.

As usual, Chrome will update itself with the latest Flash, and Microsoft browsers will receive updates via Windows Update.

If you still use Flash, and in particular if you use a web browser that is configured to play Flash content, you should install the new version as soon as possible. Better still, stop using Flash altogether. Flash is being phased out in some browsers, including Firefox. Many web sites that formerly used Flash have switched to HTML5.

Patch Tuesday for December

Today, Microsoft published twenty-four updates, addressing thirty-three vulnerabilities in Flash player (for Microsoft browsers), Office, Internet Explorer, Edge, and Windows.

As usual, Microsoft’s announcement is little more than a pointer to the Security Update Guide (SUG). If you’re looking for details about any of these updates, that’s your only official option. The SUG’s user interface is somewhat headache-inducing, but there’s useful information to be had there.

Windows 10 gets these updates whether you want them or not; Windows 7 and 8.1 can be configured for automatic or manual updates. I personally don’t like the idea of updates being installed on my computers at Microsoft’s whim, so I’m sticking with manual updates. And avoiding Windows 10 completely. And gradually switching to Linux.

November updates for Adobe products

Adobe logoYesterday, Adobe announced updates for several of its main products, including Flash, Acrobat Reader, and Shockwave.

Flash 27.0.0.187 addresses five critical vulnerabilities in earlier versions. You can download the new desktop version from the main Flash download page. That page usually offers to install additional software, which you should avoid. Chrome will as usual update itself with the new version, and both Internet Explorer and Edge will get their own updates via Windows Update.

Acrobat Reader 11.0.23 includes fixes for a whopping sixty-two vulnerabilities, all flagged as critical, in earlier versions. Download the full installer from the Acrobat Reader Download Center.

Shockwave Player 12.3.1.201 addresses a single critical security issue in earlier versions. Download the new version from the Adobe Shockwave Player Download Center.

If you use Flash, Reader or Shockwave to view content from untrusted sources, or if you use a web browser with add-ons enabled for any of these technologies, you should update affected systems immediately.

Patch Tuesday for November 2017

According to Microsoft’s announcement, the November updates include patches for Internet Explorer, Edge, Windows, Office, and .NET. As usual, you have to dig into the rather awkward Security Update Guide to find additional details.

My analysis of the SUG reveals that there are fifty-three bulletins, addressing fifty-four vulnerabilities across the usual range of products. Sixteen of the vulnerabilities are flagged Critical.

If you’re interested in performing your own analysis, I strongly suggest avoiding the cumbersome SUG interface. Instead, locate the almost hidden ‘Download’ link at the top right of the updates grid and click that to open the data in Excel. From there you can use Excel’s filtering tools to wrestle the update information into more manageable lists.

Flash 27.0.0.170 fixes one security issue

Adobe logoAnd just like that, we get another version of Flash, this one addressing a single security vulnerability. From the security bulletin: “Adobe is aware of a report that an exploit for CVE-2017-11292 exists in the wild, and is being used in limited, targeted attacks against users running Windows.”

Anyone still using Flash in their web browser should install the new version as soon as possible. You can check which version you’re running and download the new one at the Flash version checker and download page.

As usual, Chrome will get the new Flash via its own internal update system, and Microsoft browsers will be updated via Windows Update.