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Category:   Application (Generic)  >   Glibc Vendors:   GNU [multiple authors]
Glibc nss_files File Pointer Reset Lets Remote Users Deny Service
SecurityTracker Alert ID:  1031838
SecurityTracker URL:  http://securitytracker.com/id/1031838
CVE Reference:   CVE-2014-8121   (Links to External Site)
Date:  Mar 6 2015
Impact:   Denial of service via network
Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Glibc. A remote user can cause denial of service conditions on the target system.

The nss_files database for the Name Service Switch (NSS) does not properly handle lookups that occur in the middle of iterations and may reset the file pointer during the iteration. A remote or local user can cause the target application to enter an infinite loop.

The Samba application is affected.

Robin Hack of Red Hat reported this vulnerability.

Impact:   A remote user can cause the target application to enter an infinite loop.
Solution:   No solution was available at the time of this entry.

A proposed patch is available at:

http://patchwork.sourceware.org/patch/5231/

Vendor URL:  www.gnu.org/software/libc/ (Links to External Site)
Cause:   State error
Underlying OS:  Linux (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Mar 6 2015 (Red Hat Issues Fix) Glibc nss_files File Pointer Reset Lets Remote Users Deny Service
Red Hat has issued a fix for Red Hat Enterprise Linux 7.
Aug 11 2015 (IBM Issues Fix for Proventia) Glibc nss_files File Pointer Reset Lets Remote Users Deny Service
IBM has issued a fix for Proventia.
Oct 19 2015 (IBM Issues Fix for IBM Security Network IPS) Glibc nss_files File Pointer Reset Lets Remote Users Deny Service
IBM has issued a fix for IBM Security Network IPS.
May 26 2016 (Ubuntu Issues Fix) Glibc nss_files File Pointer Reset Lets Remote Users Deny Service
Ubuntu has issued a fix for Ubuntu Linux 12.04 LTS, 14.04 LTS, and 15.10.



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