Vulnerability Details : CVE-2016-0634
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.
Vulnerability category: Execute code
Products affected by CVE-2016-0634
- cpe:2.3:a:gnu:bash:4.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-0634
1.57%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-0634
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.0
|
MEDIUM | AV:N/AC:M/Au:S/C:P/I:P/A:P |
6.8
|
6.4
|
NIST | |
7.5
|
HIGH | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.6
|
5.9
|
NIST |
CWE ids for CVE-2016-0634
-
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-0634
-
http://www.openwall.com/lists/oss-security/2016/09/16/12
oss-security - Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAMEMailing List;Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1377613
1377613 – (CVE-2016-0634) CVE-2016-0634 bash: Arbitrary code execution via malicious hostnameIssue Tracking;Patch;Third Party Advisory;VDB Entry
-
https://security.gentoo.org/glsa/201612-39
Bash: Arbitrary code execution (GLSA 201612-39) — Gentoo securityThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/09/19/7
oss-security - Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAMEMailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/10/10/3
oss-security - RE: Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAMEMailing List;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2017:1931
RHSA-2017:1931 - Security Advisory - Red Hat Customer Portal
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http://rhn.redhat.com/errata/RHSA-2017-0725.html
RHSA-2017:0725 - Security Advisory - Red Hat Customer Portal
-
http://www.openwall.com/lists/oss-security/2016/10/10/4
oss-security - Re: Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAMEMailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/10/07/6
oss-security - Re: Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAMEMailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/09/27/9
oss-security - Re: Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAMEMailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/09/18/11
oss-security - Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAMEMailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/09/29/27
oss-security - Re: Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAMEMailing List;Third Party Advisory
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http://www.openwall.com/lists/oss-security/2016/09/20/1
oss-security - Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAMEMailing List;Third Party Advisory
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http://www.securityfocus.com/bid/92999
GNU Bash CVE-2016-0634 Local Code Execution VulnerabilityThird Party Advisory;VDB Entry
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http://www.openwall.com/lists/oss-security/2016/09/16/8
oss-security - CVE-2016-0634 -- bash prompt expanding $HOSTNAMEMailing List;Patch;Third Party Advisory
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