SecurityTracker.com
    Home    |    View Topics    |    Search    |    Contact Us    |   

SecurityTracker
Archives


 


Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel do_sigaltstack() Lets Local Users Obtain Portions of Kernel Memory
SecurityTracker Alert ID:  1022959
SecurityTracker URL:  http://securitytracker.com/id/1022959
CVE Reference:   CVE-2009-2847   (Links to External Site)
Date:  Sep 30 2009
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.4 - 2.4.37, 2.6 to prior to 2.6.31-rc5
Description:   A vulnerability was reported in the Linux Kernel. A local user can obtain portions of kernel memory.

A local user can invoke the do_sigaltstack() function in 'kernel/signal.c' to obtain potentially sensitive information from kernel memory.

64-bit systems are affected.

A demonstration exploit is available at:

http://www.milw0rm.com/exploits/9352

Ulrich Drepper reported this vulnerability.

Impact:   A local user can obtain potentially sensitive information from kernel memory.
Solution:   The vendor has issued a fix, available at:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=0083fc2c50e6c5127c2802ad323adf8143ab7856

Vendor URL:  www.kernel.org/ (Links to External Site)
Cause:   Access control error

Message History:   This archive entry has one or more follow-up message(s) listed below.
Sep 30 2009 (Red Hat Issues Fix) Linux Kernel do_sigaltstack() Lets Local Users Obtain Portions of Kernel Memory
Red Hat has released a fix for Red Hat Enterprise Linux 5.3 Extended Update Support.



 Source Message Contents



[Original Message Not Available for Viewing]


Go to the Top of This SecurityTracker Archive Page





Home   |    View Topics   |    Search   |    Contact Us

This web site uses cookies for web analytics. Learn More

Copyright 2021, SecurityGlobal.net LLC