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Fencer Intel
medium 4.6

CVE-2014-7817 json

The wordexp function in GNU C Library (aka glibc) 2.21 does not enforce the WRDE_NOCMD flag, which allows context-dependent attackers to ex…

published 2014-11-24 11 y ago modified 2026-06-17 4 mo ago also EUVD-2014-7685

cvss
4.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

The wordexp function in GNU C Library (aka glibc) 2.21 does not enforce the WRDE_NOCMD flag, which allows context-dependent attackers to execute arbitrary commands, as demonstrated by input containing "$((`...`))".

Patch / fix

  • glibc Debian 14, Debian 13, Debian 12 2.19-14

debian advisories DEBIAN-CVE-2014-7817

  • eglibc Ubuntu 14.04 LTS 2.19-0ubuntu6.4

ubuntu advisories UBUNTU-CVE-2014-7817

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • glibc RHEL 6 2.12-1.149.el6_6.4
  • nscd RHEL 6 2.12-1.149.el6_6.4
  • glibc-utils RHEL 6 2.12-1.149.el6_6.4
  • glibc-common RHEL 6 2.12-1.149.el6_6.4
  • glibc-debuginfo-common RHEL 6 2.12-1.149.el6_6.4
  • glibc RHEL 7 2.17-55.el7_0.3
  • nscd RHEL 7 2.17-55.el7_0.3
  • glibc-utils RHEL 7 2.17-55.el7_0.3

red hat advisories RHSA-2015:0016RHSA-2014:2023

  • glibc SLES for SAP 12, SLES 12, SLED 12 +1 more 2.19-20.3

suse advisories SUSE-SU-2015:0526-1

  • glibc openSUSE Tumbleweed 2.24-2.3

opensuse advisories openSUSE-SU-2024:10154-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-7817 updated cvss 3.6

glibc: command execution in wordexp() with WRDE_NOCMD specified

  • Red Hat Enterprise Linux 5 glibc
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) nscd 2.17-55.el7_0.3, glibc 2.17-55.el7_0.3, glibc-utils 2.17-55.el7_0.3, glibc-common 2.17-55.el7_0.3, glibc-debuginfo-common 2.17-55.el7_0.3 Red Hat Enterprise Linux Client Optional (v. 7) glibc-debuginfo-common 2.17-55.el7_0.3 Red Hat Enterprise Linux ComputeNode (v. 7) nscd 2.17-55.el7_0.3, glibc 2.17-55.el7_0.3, glibc-utils 2.17-55.el7_0.3, glibc-common 2.17-55.el7_0.3, glibc-debuginfo-common 2.17-55.el7_0.3 Red Hat Enterprise Linux ComputeNode Optional (v. 7) glibc-debuginfo-common 2.17-55.el7_0.3
    fixed: vendor fix RHSA-2014:2023
  • Red Hat Enterprise Linux Desktop (v. 6) nscd 2.12-1.149.el6_6.4, glibc 2.12-1.149.el6_6.4, glibc-utils 2.12-1.149.el6_6.4, glibc-common 2.12-1.149.el6_6.4, glibc-debuginfo-common 2.12-1.149.el6_6.4 Red Hat Enterprise Linux Desktop Optional (v. 6) glibc-debuginfo-common 2.12-1.149.el6_6.4 Red Hat Enterprise Linux HPC Node (v. 6) nscd 2.12-1.149.el6_6.4, glibc 2.12-1.149.el6_6.4, glibc-utils 2.12-1.149.el6_6.4, glibc-common 2.12-1.149.el6_6.4, glibc-debuginfo-common 2.12-1.149.el6_6.4 Red Hat Enterprise Linux HPC Node Optional (v. 6) glibc-debuginfo-common 2.12-1.149.el6_6.4 Red Hat Enterprise Linux Server (v. 6) nscd 2.12-1.149.el6_6.4, glibc 2.12-1.149.el6_6.4, glibc-utils 2.12-1.149.el6_6.4, glibc-common 2.12-1.149.el6_6.4, glibc-debuginfo-common 2.12-1.149.el6_6.4
    fixed: vendor fix RHSA-2015:0016
  • Red Hat Enterprise Linux Server (v. 7) nscd 2.17-55.el7_0.3, glibc 2.17-55.el7_0.3, glibc-utils 2.17-55.el7_0.3, glibc-common 2.17-55.el7_0.3, glibc-debuginfo-common 2.17-55.el7_0.3
    fixed: vendor fix RHSA-2014:2023
  • Red Hat Enterprise Linux Server Optional (v. 6) glibc-debuginfo-common 2.12-1.149.el6_6.4
    fixed: vendor fix RHSA-2015:0016
  • Red Hat Enterprise Linux Server Optional (v. 7) glibc-debuginfo-common 2.17-55.el7_0.3
    fixed: vendor fix RHSA-2014:2023
  • Red Hat Enterprise Linux Workstation (v. 6) nscd 2.12-1.149.el6_6.4, glibc 2.12-1.149.el6_6.4, glibc-utils 2.12-1.149.el6_6.4, glibc-common 2.12-1.149.el6_6.4, glibc-debuginfo-common 2.12-1.149.el6_6.4
    fixed: vendor fix RHSA-2015:0016
  • Red Hat Enterprise Linux Workstation (v. 7) nscd 2.17-55.el7_0.3, glibc 2.17-55.el7_0.3, glibc-utils 2.17-55.el7_0.3, glibc-common 2.17-55.el7_0.3, glibc-debuginfo-common 2.17-55.el7_0.3
    fixed: vendor fix RHSA-2014:2023
show 2 more
  • Red Hat Enterprise Linux Workstation Optional (v. 6) glibc-debuginfo-common 2.12-1.149.el6_6.4
    fixed: vendor fix RHSA-2015:0016
  • Red Hat Enterprise Linux Workstation Optional (v. 7) glibc-debuginfo-common 2.17-55.el7_0.3
    fixed: vendor fix RHSA-2014:2023

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.