CVE-2014-8121

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 on a database while iterating over it, which triggers the file pointer to be reset.

• CWE-17

• http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.htmlMailing List
• http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.htmlMailing List
• http://rhn.redhat.com/errata/RHSA-2015-0327.htmlThird Party Advisory
• http://www.debian.org/security/2016/dsa-3480Third Party Advisory
• http://www.securityfocus.com/bid/73038Third Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-2985-1Third Party Advisory
• http://www.ubuntu.com/usn/USN-2985-2Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1165192Exploit, Issue Tracking
• https://security.gentoo.org/glsa/201602-02Third Party Advisory
• https://sourceware.org/ml/libc-alpha/2015-02/msg00617.htmlExploit
• http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.htmlMailing List
• http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.htmlMailing List
• http://rhn.redhat.com/errata/RHSA-2015-0327.htmlThird Party Advisory
• http://www.debian.org/security/2016/dsa-3480Third Party Advisory
• http://www.securityfocus.com/bid/73038Third Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-2985-1Third Party Advisory
• http://www.ubuntu.com/usn/USN-2985-2Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1165192Exploit, Issue Tracking
• https://security.gentoo.org/glsa/201602-02Third Party Advisory
• https://sourceware.org/ml/libc-alpha/2015-02/msg00617.htmlExploit

Published

Mar 27, 2015

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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