Security Bulletin
Summary
Security vulnerabilities in Samba affect IBM i. IBM i has addressed the applicable CVEs.
Vulnerability Details
CVEID: CVE-2015-7560
DESCRIPTION: Samba could allow a remote authenticated attacker to launch a symlink attack. By creating a symbolic link to a file or directory using SMB1 UNIX extensions and then issuing a non-UNIX SMB1, an attacker could exploit this vulnerability to overwrite access control lists on the directory.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111384 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
CVEID: CVE-2016-0771
DESCRIPTION: Samba is vulnerable to a denial of service, caused by an out-of-bounds read error when handling DNS TXT records. By querying an uploaded specially crafted DNS TXT record, a remote authenticated attacker could exploit this vulnerability to crash the internal DNS server or return uninitialized memory.
CVSS Base Score: 5.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111383 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:N/A:L)
Affected Products and Versions
Release 7.2 of IBM i is affected.
Remediation/Fixes
The issue can be fixed by applying a PTF to the IBM i Operating System.
Release 7.2 of IBM i are supported and will be fixed.
http://www-933.ibm.com/support/fixcentral/
The IBM i PTF number is:
Release 7.2 – SI60139
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 known.
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References
*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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
18 December 2019
UID
nas8N1021200