CVE-2016-0634

moderate-risk
Published 2017-08-28

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.

Do I need to act?

~
2.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / HIGH complexity

Affected Products (1)

Affected Vendors

Gnu

References (30)

http://rhn.redhat.com/errata/RHSA-2017-0725.html
Mailing List http://www.openwall.com/lists/oss-security/2016/09/16/12
Mailing List http://www.openwall.com/lists/oss-security/2016/09/16/8
Mailing List http://www.openwall.com/lists/oss-security/2016/09/18/11
Mailing List http://www.openwall.com/lists/oss-security/2016/09/19/7
Mailing List http://www.openwall.com/lists/oss-security/2016/09/20/1
Mailing List http://www.openwall.com/lists/oss-security/2016/09/27/9
Mailing List http://www.openwall.com/lists/oss-security/2016/09/29/27
Mailing List http://www.openwall.com/lists/oss-security/2016/10/07/6
Mailing List http://www.openwall.com/lists/oss-security/2016/10/10/3
Mailing List http://www.openwall.com/lists/oss-security/2016/10/10/4
Third Party Advisory http://www.securityfocus.com/bid/92999
https://access.redhat.com/errata/RHSA-2017:1931
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1377613
Third Party Advisory https://security.gentoo.org/glsa/201612-39
http://rhn.redhat.com/errata/RHSA-2017-0725.html
Mailing List http://www.openwall.com/lists/oss-security/2016/09/16/12
Mailing List http://www.openwall.com/lists/oss-security/2016/09/16/8
Mailing List http://www.openwall.com/lists/oss-security/2016/09/18/11
Mailing List http://www.openwall.com/lists/oss-security/2016/09/19/7
and 10 more references
32
/ 100
moderate-risk
Severity 22/34 · High
Exploitability 5/34 · Minimal
Exposure 5/34 · Minimal