Intelligence online17 sources monitored8 actively exploited 7d26 published 24hChecked recently
Vulnerability record

CVE-2014-6278

GNU Bash OS Command Injection Vulnerability

HighExploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run GNU Bash, fix it now.

CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

US federal civilian agencies must remediate by Oct 23, 2025.

Patch status

Official fix available since

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

Description

GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote attackers to execute arbitrary commands via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271, CVE-2014-7169, and CVE-2014-6277.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

ProductVendorAffected versionsSource
GNU BashGNU1.14.0; 1.14.1; 1.14.2; 1.14.3; 1.14.4; 1.14.5KEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2014-6278 scored CVSS 8.8: GNU GNU Bash, GNU Bash OS Command Injection Vulnerability

    CISA lists this as exploited in the wild. Unpatched GNU Bash systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdateKEV

    Patch released for CVE-2014-6278: GNU GNU Bash, GNU Bash OS Command Injection Vulnerability

    An official fix is now available for GNU GNU Bash. This vulnerability is being exploited, so apply it promptly.

    Basis: NVD patch reference

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References

  • ftp.gnu.org http://ftp.gnu.org/gnu/bash/bash-4.3-patches/bash43-027
  • support.broadcom.com https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/2346…
  • sec.cloudapps.cisco.com https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140926-bash
  • ibm.com https://www.ibm.com/support/pages/security-bulletin-update-vulnerabilities-bash-affect-aix-toolbox-linux-appli…
  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2014-6278
  • jvn.jp http://jvn.jp/en/jp/JVN55667175/index.html
  • jvndb.jvn.jp http://jvndb.jvn.jp/jvndb/JVNDB-2014-000126
  • lcamtuf.blogspot.com http://lcamtuf.blogspot.com/2014/09/bash-bug-apply-unofficial-patch-now.html
  • lcamtuf.blogspot.com http://lcamtuf.blogspot.com/2014/10/bash-bug-how-we-finally-cracked.html
  • linux.oracle.com http://linux.oracle.com/errata/ELSA-2014-3093
  • linux.oracle.com http://linux.oracle.com/errata/ELSA-2014-3094
  • lists.opensuse.org http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00004.html
  • lists.opensuse.org http://lists.opensuse.org/opensuse-updates/2014-10/msg00025.html
  • marc.info http://marc.info/?l=bugtraq&m=141330468527613&w=2
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  • marc.info http://marc.info/?l=bugtraq&m=141383081521087&w=2
  • marc.info http://marc.info/?l=bugtraq&m=141383196021590&w=2
  • marc.info http://marc.info/?l=bugtraq&m=141383244821813&w=2
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  • marc.info http://marc.info/?l=bugtraq&m=141577241923505&w=2
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  • marc.info http://marc.info/?l=bugtraq&m=142118135300698&w=2