4 out of 5 critical issues fixed on Patch Tuesday


Expected patch omitted from monthly security update.


Microsoft

has announced the contents of its monthly ‘Patch Tuesday’ security update release, with four ‘Critical’ and two ‘Important’ fixes pushed out to users of its operating systems and software. A fifth issue, labelled ‘Critical’ in the advance notification released last week, remains open as the expected patch has been held back to resolve issues discovered during final testing.

The critical patches cover single vulnerabilities in

Word

,

Outlook Express

/

Windows Mail

and

Kodak Image Viewer

, as well as a four separate problems found in

Internet Explorer

, one of which had been publicly disclosed as long ago as February. All could allow an attacker to execute code remotely on vulnerable systems. The less crucial fixes are for a possible denial-of-service vulnerability in the RPC system and a privilege escalation issue in

Sharepoint

.

Little detail has been released regarding the missing patch, except that it was withdrawn following a ‘quality control issue’. It seems likely that it will be kept back until next month’s Patch Tuesday. Of the vulnerabilities that have been fixed, at least two, the flaws in

Word

and

Sharepoint

, have had exploits made public or used in targeted attacks, according to

SANS

.

The full security bulletin detailing all the patches is

here

, with a

Microsoft Security Response Center

blog entry describing the changes to the scheduled release

here

.

Posted on 10 October 2007 by

Virus Bulletin


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