OS Command Injection Affecting bash-doc package, versions <0:4.1.2-48.el6
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published10 Apr 2022
- disclosed28 Aug 2017
Introduced: 28 Aug 2017
CVE-2016-0634 (opens in a new tab)How to fix?
Upgrade Oracle:6 bash-doc to version 0:4.1.2-48.el6 or higher.
This issue was patched in ELSA-2017-0725.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bash-doc package and not the bash-doc package as distributed by Oracle.
See How to fix? for Oracle: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
- https://linux.oracle.com/cve/CVE-2016-0634.html
- https://linux.oracle.com/errata/ELSA-2017-0725.html
- https://linux.oracle.com/errata/ELSA-2017-1931.html
- 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