CVE-2014-6271

Severity CVSS v4.0:

Pending analysis

Type:

CWE-78 OS Command Injections

Publication date:

24/09/2014

Last modified:

12/04/2025

Description

GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code 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, aka "ShellShock." NOTE: the original fix for this issue was incorrect; CVE-2014-7169 has been assigned to cover the vulnerability that is still present after the incorrect fix.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

9.80

Severity 3.x

CRITICAL

Vector 2.0

AV:N/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 10.00 HIGH
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

10.00

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:gnu:bash::::::::		4.3 (including)
cpe:2.3:o:arista:eos::::::::	4.9.0 (including)	4.9.12 (excluding)
cpe:2.3:o:arista:eos::::::::	4.10.0 (including)	4.10.9 (excluding)
cpe:2.3:o:arista:eos::::::::	4.11.0 (including)	4.11.11 (excluding)
cpe:2.3:o:arista:eos::::::::	4.12.0 (including)	4.12.9 (excluding)
cpe:2.3:o:arista:eos::::::::	4.13.0 (including)	4.13.9 (excluding)
cpe:2.3:o:arista:eos::::::::	4.14.0 (including)	4.14.4f (excluding)
cpe:2.3:o:oracle:linux:4:::::::*
cpe:2.3:o:oracle:linux:5:-::::::
cpe:2.3:o:oracle:linux:6:-::::::
cpe:2.3:o:qnap:qts::::::::		4.1.1 (excluding)
cpe:2.3:o:qnap:qts:4.1.1:-::::::
cpe:2.3:o:qnap:qts:4.1.1:build_0927::::::
cpe:2.3:o:mageia:mageia:3.0:::::::*
cpe:2.3:o:mageia:mageia:4.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2014-6271

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools