Vulnerability in GNU Glibc
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.056 (92.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.056 · newest: 0.056 · change: 0.000
Affected products
- GNU Glibc
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
- SUSE Linux Enterprise Desktop — versions 11
- SUSE Linux Enterprise Server — versions 11.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.html (vendor-advisory, Mailing List)
- bugzilla.redhat.com/show_bug.cgi (Exploit, Issue Tracking)
- lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html (vendor-advisory, Mailing List)
- www.ubuntu.com/usn/USN-2985-2 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201602-02 (vendor-advisory, Third Party Advisory)
- sourceware.org/ml/libc-alpha/2015-02/msg00617.html (mailing-list, Exploit)
- rhn.redhat.com/errata/RHSA-2015-0327.html (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/73038 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2016/dsa-3480 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-2985-1 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2014-8121?
- CVE-2014-8121 is a vulnerability in GNU Glibc, classified under CWE-17. Published 2015-03-27.
- Is CVE-2014-8121 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.