CVE-2014-8121

Name: CVE-2014-8121
Creator: NVD / NIST
Published: 2015-03-27T14:59:03.353+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.36%

Last modified Jun 17, 2026

CVE-2014-8121 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 6.36% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

6.36%

92.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-17

Affected Software

Vendor	Product	Versions	Update
Suse	Suse Linux Enterprise Desktop	11	Sp3
Suse	Suse Linux Enterprise Server	11.0	Sp3
Gnu	Glibc	<= 2.21	—
Canonical	Ubuntu Linux	12.04	—
Canonical	Ubuntu Linux	14.04	—
Canonical	Ubuntu Linux	15.10	—

References

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

Timeline

Published: Mar 27, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-8121?

How severe is CVE-2014-8121?

Severity scoring for CVE-2014-8121 is pending analysis. The EPSS model estimates a 6.36% probability of exploitation in the next 30 days.

How do I fix CVE-2014-8121?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-8121?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST