VulnerabilityModified
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.
HIGH 7.5EPSS 6.02%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.02%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 6.02% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- gnu/bash
- Source
- secalert_us@oracle.com
References
- http://rhn.redhat.com/errata/RHSA-2017-0725.html
- http://www.openwall.com/lists/oss-security/2016/09/16/12Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/16/8Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/18/11Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/19/7Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/20/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/27/9Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/29/27Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/07/6Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/10/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/10/4Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/92999Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1931
- https://bugzilla.redhat.com/show_bug.cgi?id=1377613Issue Tracking, Patch, Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201612-39Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0725.html
- http://www.openwall.com/lists/oss-security/2016/09/16/12Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/16/8Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/18/11Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/19/7Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/20/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/27/9Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/29/27Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/07/6Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/10/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/10/4Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/92999Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1931
- https://bugzilla.redhat.com/show_bug.cgi?id=1377613Issue Tracking, Patch, Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201612-39Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.