Security Bulletin
Summary
Multiple samba vulnerabilities affect IBM Spectrum Scale SMB protocol access method that could cause denial of service. A fix for these vulnerabilities is available.
Vulnerability Details
CVEID: CVE-2020-14318
DESCRIPTION: Samba could allow a remote authenticated attacker to obtain sensitive information, caused by a missing permissions check on a directory handle requesting ChangeNotify. By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain file name information, and use this information to launch further attacks against the affected system.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/191029 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2020-14323
DESCRIPTION: Samba is vulnerable to a denial of service, caused by a NULL pointer dereference in the Winbind service. By sending a specially-crafted packet, a local authenticated attacker could exploit this vulnerability to crash the winbind service.
CVSS Base score: 5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190934 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H)
Affected Products and Versions
Affected Product(s) | Version(s) |
IBM Spectrum Scale | 5.0.0 - 5.0.5.4 |
IBM Spectrum Scale | 5.1.0 |
Remediation/Fixes
For IBM Spectrum Scale V5.0.0 through V5.0.5.4, apply V5.0.5.5 available from FixCentral at
For IBM Spectrum Scale V5.1.0, apply V5.1.0.1 available from FixCentral at
Workarounds and Mitigations
None
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References
Change History
08 Dec 2020: 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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
More support for:
IBM Spectrum Scale
Software version:
5.1
Operating system(s):
Linux
Document number:
6407802
Modified date:
25 January 2021
UID
ibm16407802