OS Command Injection Affecting bash package, versions <0:4.1.2-48.el6
Snyk CVSS
Attack Complexity
High
Threat Intelligence
EPSS
1.57% (88th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS6-BASH-2138469
- published 26 Jul 2021
- disclosed 16 Oct 2015
Introduced: 16 Oct 2015
CVE-2016-0634 Open this link in a new tabHow to fix?
Upgrade Centos:6 bash to version 0:4.1.2-48.el6 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 Centos.
See How to fix? for Centos:6 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/92999
- https://bugzilla.redhat.com/show_bug.cgi?id=1377613
- https://access.redhat.com/security/cve/CVE-2016-0634
- https://security.gentoo.org/glsa/201612-39
- 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://rhn.redhat.com/errata/RHSA-2017-0725.html
- https://access.redhat.com/errata/RHSA-2017:0725