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AUSCERT External Security Bulletin Redistribution
IBM Security Bulletin: Vulnerability CVE-2019-3880 in Samba affects IBM i
15 April 2019
AusCERT Security Bulletin Summary
Product: IBM i
Operating System: IBM i
Impact/Access: Create Arbitrary Files -- Existing Account
Access Confidential Data -- Existing Account
CVE Names: CVE-2019-3880
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Vulnerability CVE-2019-3880 in Samba affects IBM i
Product: IBM i
Software version: 7.2, 7.3
Operating system(s): IBM i
Reference #: 0880621
Samba is supported on IBM i. IBM i has addressed the applicable CVE.
DESCRIPTION: Samba could allow a remote authenticated attacker to traverse
directories on the system. An attacker could send a specially-crafted
"winreg_SaveKey" request to create a new registry hive file outside a Samba
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
159188 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)
Affected Products and Versions
Releases 7.2 and 7.3 of IBM i are affected.
The issue can be fixed by applying a PTF to IBM i.
Releases 7.2 and 7.3 of IBM i are supported and will be fixed.
The IBM i PTF numbers are:
Release 7.2 - SI69591
Release 7.3 - SI69592
Important note: IBM recommends that all users running unsupported versions of
affected products upgrade to supported and fixed version of affected products.
Workarounds and Mitigations
Complete CVSS v3 Guide
On-line Calculator v3
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
12 April 2019: Original Document Published
*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF
ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
Cross reference information
Product Component Platform Version Edition
IBM i 7.2 IBM i 7.2
IBM i 7.3 IBM i 7.3
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