OS Command Injection Affecting bash package, versions <4.3-14ubuntu1.2
Threat Intelligence
EPSS
1.57% (88th
percentile)
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Test your applications- Snyk ID SNYK-UBUNTU1604-BASH-351541
- published 28 Aug 2017
- disclosed 28 Aug 2017
Introduced: 28 Aug 2017
CVE-2016-0634 Open this link in a new tabHow to fix?
Upgrade Ubuntu:16.04 bash to version 4.3-14ubuntu1.2 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 Ubuntu.
See How to fix? for Ubuntu:16.04 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://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-0634
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0634
- https://security-tracker.debian.org/tracker/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
- https://bugzilla.redhat.com/show_bug.cgi?id=1377613
- http://rhn.redhat.com/errata/RHSA-2017-0725.html
- https://access.redhat.com/errata/RHSA-2017:1931
- http://www.securityfocus.com/bid/92999