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Vulnerability Score 5.0 5.0
CVE Id CVE-2014-8121
Last Modified 29 Sep 2015 09:59:16
Published 27 Mar 2015 10:59:03
Confidentiality Impact NONE NONE
Integrity Impact NONE NONE
Availability Impact PARTIAL PARTIAL
Access Vector NETWORK
Access Complexity LOW
Authentication NONE



DB_LOOKUP in nss_files/files-XXX.c in the Name Service Switch (NSS) in GNU C Library (aka glibc or libc6) 2.21 and earlier does not properly check if a file is open, which allows remote attackers to cause a denial of service (infinite loop) by performing a look-up while the database is iterated over the database, which triggers the file pointer to be reset.

Vulnerable Systems


  • Gnu Glibc 2.21


MLIST - [libc-alpha] 20150223 [PATCH] CVE-2014-8121: Fix nss_files file management [BZ#18007]


REDHAT - RHSA-2015:0327

SUSE - SUSE-SU-2015:1424

Related Patches

Novell SUSE 2015:12042 glibc security update for SLE 11 i586

Novell SUSE 2015:12042 glibc security update for SLE 11 x86_64

Last Updated: 27 May 2016 11:09:58