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CVE-2014-8121

20
FAUCET Score

CVE-2014-8121 describes a denial-of-service vulnerability in the GNU C Library (glibc) affecting versions 2.21 and earlier, specifically within the Name Service Switch (NSS) component. An attacker can trigger an infinite loop by performing a database lookup while iterating over it, causing the file pointer to reset. This vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and no authentication required, leading to a partial denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
11CPE matchmatch criteria
cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:sp3:*:*:*:*:*:*
11CPE matchmatch criteria
cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:sp4:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:suse:suse_linux_enterprise_server:11.0:sp3:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:suse:suse_linux_enterprise_server:11.0:sp3:*:*:*:vmware:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:suse:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.61%
Probability of exploitation in next 30 days
EPSS Percentile
92.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0561 is in the 89th percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: glibc-0:2.17-78.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: glibc
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: glibc

Vendor Advisories (1)

redhatCVE-2014-8121Low

glibc: Unexpected closing of nss_files databases after lookups causes denial of service

Feb 23, 2015

References

lists.opensuse.org / opensuse-security-announce/2015-08/msg00019.html
Mailing List
lists.opensuse.org / opensuse-security-announce/2016-02/msg00036.html
Mailing List
rhn.redhat.com / errata/RHSA-2015-0327.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
ExploitIssue Tracking
security.gentoo.org / glsa/201602-02
Third Party Advisory
sourceware.org / ml/libc-alpha/2015-02/msg00617.html
Exploit
debian.org / security/2016/dsa-3480
Third Party Advisory
securityfocus.com / bid/73038
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2985-1
Third Party Advisory
ubuntu.com / usn/USN-2985-2
Third Party Advisory