Vulnerability CVE-2016-0634
Published: 2017-08-28

Description:
The expansion of '\h' in the prompt string in bash 4.3 allows remote authenticated users to execute arbitrary code via shell metacharacters placed in 'hostname' of a machine.

Type:

CWE-78

 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') )

CVSS2 => (AV:N/AC:M/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6/10
6.4/10
6.8/10
Exploit range
Attack complexity
Authentication
Remote
Medium
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
GNU -> BASH 

 References:
http://rhn.redhat.com/errata/RHSA-2017-0725.html
http://www.openwall.com/lists/oss-security/2016/09/16/12
http://www.openwall.com/lists/oss-security/2016/09/16/8
http://www.openwall.com/lists/oss-security/2016/09/18/11
http://www.openwall.com/lists/oss-security/2016/09/19/7
http://www.openwall.com/lists/oss-security/2016/09/20/1
http://www.openwall.com/lists/oss-security/2016/09/27/9
http://www.openwall.com/lists/oss-security/2016/09/29/27
http://www.openwall.com/lists/oss-security/2016/10/07/6
http://www.openwall.com/lists/oss-security/2016/10/10/3
http://www.openwall.com/lists/oss-security/2016/10/10/4
http://www.securityfocus.com/bid/92999
https://access.redhat.com/errata/RHSA-2017:1931
https://bugzilla.redhat.com/show_bug.cgi?id=1377613
https://security.gentoo.org/glsa/201612-39
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