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Security Bulletin: Vulnerability CVE-2019-10218 in Samba affects IBM i

Security Bulletin


Summary

Samba is supported on IBM i. IBM i has addressed the applicable CVE.

Vulnerability Details

CVEID:   CVE-2019-10218
DESCRIPTION:   A flaw was found in the samba client, all samba versions before samba 4.11.2, 4.10.10 and 4.9.15, where a malicious server can supply a pathname to the client with separators. This could allow the client to access files and folders outside of the SMB network pathnames. An attacker could use this vulnerability to create files outside of the current working directory using the privileges of the client user.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/170503 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N)

Affected Products and Versions

Affected Product(s) Version(s)
IBM i 7.4
IBM i 7.3
IBM i 7.2

Remediation/Fixes

The issue can be fixed by applying a PTF to IBM i.
Releases 7.4, 7.3, and 7.2 of IBM i are supported and will be fixed.
 
The IBM i PTF numbers are:
Release 7.4 – SI71638
Release 7.3 – SI71637
Release 7.2 – SI71636

https://www-945.ibm.com/support/fixcentral/

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

None

Get Notified about Future Security Bulletins

References

Off

Change History

26 Nov 2019: Initial Publication

*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.

Disclaimer

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.

Document Location

Worldwide

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Document Information

Modified date:
26 November 2019

UID

ibm11115703