News

Microsoft Acknowledges Problem with Services for Unix

Microsoft Corp. this week patched a memory leak in the latest version of its Unix interoperability software that an attacker could exploit to take down Windows NT and Windows 2000 servers.

The patches for Services for Unix (SFU) 2.0 represent the 39th security bulletin out of Microsoft so far in 2001. Like many of the patches issued this year, the bulletin wraps up fixes for a couple of problems.

Services for Unix provides Windows-based implementations of common Unix tools and services and heterogeneous network management tools for administrators in mixed Windows/Unix environments.

Memory leaks in two SFU services, one that implements the Network File System (NFS) and one for the Telnet protocol, could be exploited in a denial-of-service attack, Microsoft acknowledged in the bulletin. Administrators targeted by such an attack would need to reboot to get their servers running properly again.

SFU 1.0 is not affected, nor are the standard Windows implementations for Telnet in Windows NT 4.0 and Windows 2000 servers.

Microsoft notes that the vulnerabilities afford attackers no possibility to usurp administrative control over the server. Nonetheless, the company says system administrators using NFS or Telnet services provided in SFU 2.0 should install the patch, which causes SFU to correctly release memory.

The patch will be included in Services for Unix 3.0.

About the Author

Scott Bekker is editor in chief of Redmond Channel Partner magazine.

Featured

  • Microsoft Warns IT Pros on Windows Netlogon Fix Coming Next Month

    Microsoft on Thursday issued a reminder to organizations to ensure that their systems are properly patched for a "Critical"-rated Windows Netlogon vulnerability before next month's "update Tuesday" patch distribution arrives.

  • Microsoft Nudging Skype for Business Users to Teams

    Microsoft on Thursday announced some perks and prods for Skype for Business unified communications users, with the aim of moving them to the Microsoft Teams collaboration service instead.

  • How To Improve Windows 10's Sound and Video Quality

    Windows 10 comes with built-in tools that can help users get the most out of their sound and video hardware.

  • Microsoft Offers More 'Solorigate' Advice Using Microsoft 365 Defender Tools

    Microsoft issued yet another article with advice on how to use its Microsoft 365 Defender suite of tools to protect against "Solorigate" advanced persistent threat types of attacks in a Thursday announcement.

comments powered by Disqus