<p>Upgrade <code>Debian:11</code> <code>bash</code> to version 4.3-9.1 or higher.</p>

OS Command Injection Affecting bash package, versions <4.3-9.1

Threat Intelligence

Mature

97.37% (100^th percentile)

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Snyk ID SNYK-DEBIAN11-BASH-530987
published 24 Sep 2014
disclosed 24 Sep 2014

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Introduced: 24 Sep 2014

CVE-2014-6271 Open this link in a new tab CWE-78 Open this link in a new tab

How to fix?

Upgrade Debian:11 bash to version 4.3-9.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bash package and not the bash package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

References

CVSS Scores

version 3.1

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