Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS : bash vulnerabilities (USN-2380-1) (Shellshock)

Ubuntu Security Notice (C) 2014-2016 Canonical, Inc. / NASL script (C) 2014-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

Michal Zalewski discovered that Bash incorrectly handled parsing
certain function definitions. If an attacker were able to create an
environment variable containing a function definition with a very
specific name, these issues could possibly be used to bypass certain
environment restrictions and execute arbitrary code. (CVE-2014-6277,
CVE-2014-6278)

Please note that the previous Bash security update, USN-2364-1,
includes a hardening measure that prevents these issues from being
used in a Shellshock attack.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected bash package.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 9.5
(CVSS2#E:F/RL:U/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 78260 ()

Bugtraq ID: 70165
70166

CVE ID: CVE-2014-6277
CVE-2014-6278

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