Feeds

IE, Excel fixes star in bumper Patch Tuesday

More from the hamster wheel of patching pain

Protecting against web application threats using SSL

Internet Explorer and Excel security updates are the most pressing patching priorities from the bumper crop of 16 bulletins issued as part of Microsoft's June Patch Tuesday updates.

Nine of the bulletins carry a maximum severity of "critical" while the remaining seven earn the lesser tag of "important".

Tuesday also brought critical fixes for Adobe Reader and Oracle for Java, placing an even heavier burden on sys admins.

Security services firm Qualys rates a patch which address 11 vulnerabilities in Internet Explorer (MS11-050) as the most severe security risk in the batch. All supported versions of IE (6-9) will need patching. The updates address a flaw in handling the VMLmarkup language, among other bugs.

Banking Trojan kits feed off browser vulnerabilities, hence the need to patch the IE flaws sooner rather than later before they are targeted by the bad guys behind ZeuS and SpyEye. The Java and Reader security bugs need plugging quickly for much the same reasons.

An update (MS11-045) that tackles eight vulnerabilities in all versions of Excel, including for Mac OS X, is next on the priority list. Redmond ranks the security update as "important" because the end user is required to open an attacker-provided file.

Qualys says that such trickery is all too easily accomplished, and the potential of the flaw to be used in targeted attacks against business users make plugging the flaw a priority.

Another item in the patch batch (MS11-046) tackles a local privilege escalation flaw in the "afd.sys" driver, the only bulletin of the 16 to tackle a vulnerability that's in the wild. The 16 bulletins collectively address 34 vulnerabilities.

Other high priority bulletins MS11-042 and MS11-043 tackle critical flaws in the SMB and DFS clients on Windows. All supported versions of Windows will need patching for one reason or another.

Microsoft's bulletin is here, and an easier-to-digest overview from the SANS Institute's Internet Storm Centre is here.

An analysis from Qualys on the updates is here. ®

Reducing the cost and complexity of web vulnerability management

More from The Register

next story
Spies would need SUPER POWERS to tap undersea cables
Why mess with armoured 10kV cables when land-based, and legal, snoop tools are easier?
Early result from Scots indyref vote? NAW, Jimmy - it's a SCAM
Anyone claiming to know before tomorrow is telling porkies
Apple Pay is a tidy payday for Apple with 0.15% cut, sources say
Cupertino slurps 15 cents from every $100 purchase
Israeli spies rebel over mass-snooping on innocent Palestinians
'Disciplinary treatment will be sharp and clear' vow spy-chiefs
YouTube, Amazon and Yahoo! caught in malvertising mess
Cisco says 'Kyle and Stan' attack is spreading through compromised ad networks
Hackers pop Brazil newspaper to root home routers
Step One: try default passwords. Step Two: Repeat Step One until success
Microsoft to patch ASP.NET mess even if you don't
We know what's good for you, because we made the mess says Redmond
NORKS ban Wi-Fi and satellite internet at embassies
Crackdown on tardy diplomatic sysadmins providing accidental unfiltered internet access
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.