Note: This is an archival copy of Security Sun Alert 201477 as previously published on http://sunsolve.sun.com.
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1001104.1.
Article ID : 1001104.1
Article Type : Sun Alerts (SURE)
Last reviewed : 2003-09-24
Audience : PUBLIC
Copyright Notice: Copyright © 2010, Oracle Corporation and/or its affiliates.

The Am7990 ("LANCE") Ethernet Driver (le(7D)) Reuses Old Frame Buffer Data to Pad Packets



Category
Security

Release Phase
Resolved

Product
Solaris 9 Operating System
Solaris 2.6 Operating System
Solaris 7 Operating System
Solaris 8 Operating System

Bug Id
4105008

Date of Resolved Release
02-OCT-2003

Impact

The Sun Am7990 ("LANCE") Ethernet driver (le(7D)) may reuse old frame buffer data to pad packets resulting in an information leakage vulnerability that may allow a remote privileged user to harvest sensitive information from network traffic.

This issue is described in CERT Vulnerability VU#412115 (see http://www.kb.cert.org/vuls/id/412115 and http://www.kb.cert.org/vuls/id/JPLA-5BGNYP).


Contributing Factors

This issue can occur in the following releases:

SPARC Platform

  • Solaris 2.6 without patch 105181-35
  • Solaris 7 without patch 112604-02
  • Solaris 8 without patch 112609-02
  • Solaris 9 without patch 115172-01

Note: The Am7990 ("LANCE") Ethernet driver le(7D) is for SPARC platforms only, thus x86 platforms are not affected.

This issue only occurs on SPARC systems that utilize the Am7990 ("LANCE") Ethernet driver (le(7D)).

To determine if the Am7990 Ethernet driver is installed on your system, run the following command:

    $ ifconfig -a
le0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
inet 127.0.0.0 netmask ff000000

Any reference to "le0" would indicate an open Lance Ethernet (le) interface.


Symptoms

There are no predictable symptoms that would show the described issue has been exploited.


Workaround

There is no workaround for this issue. Please see "Resolution" section below.


Resolution

This issue is addressed in the following releases:

SPARC Platform

  • Solaris 2.6 with patch 105181-35 or later
  • Solaris 7 with patch 112604-02 or later
  • Solaris 8 with patch 112609-02 or later
  • Solaris 9 with patch 115172-01 or later


Modification History

References

115172-01
112609-02
112604-02
105181-35




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