Security Bulletin: Vulnerabilities in Samba affect IBM Spectrum Scale SMB protocol access method (CVE-2017-14746, CVE-2017-15275)

Summary

Vulnerabilities in Samba affect IBM Spectrum Scale SMB protocol access method that:
- could allow a remote attacker to execute arbitrary code on the system, caused by a use-after-free memory error (CVE-2017-14746)
- could allow a remote attacker to obtain sensitive information, caused by a heap memory information leak (CVE-2017-15275)

Vulnerability Details

CVEID: CVE-2017-15275 DESCRIPTION: Samba could allow a remote attacker to obtain sensitive information, caused by a heap memory information leak. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain password hashes or other high-value data.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/135221 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2017-14746 DESCRIPTION: Samba could allow a remote attacker to execute arbitrary code on the system, caused by a use-after-free memory error. By sending a specially crafted SMB1 request, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/135222 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

IBM Spectrum Scale 5.0.0.0

IBM Spectrum Scale 4.2.0.0 through 4.2.3.6

IBM Spectrum Scale 4.1.1.0 through 4.1.1.18

Remediation/Fixes

For IBM Spectrum Scale V5.0.0.0, apply V5.0.0.1 available from FixCentral at
https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Spectrum+Scale&release=5.0.0&platform=All&function=all

For IBM Spectrum Scale V4.2.0.0 thru V4.2.3.6, apply V4.2.3.7 available from FixCentral at
https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Spectrum+Scale&release=4.2.3&platform=All&function=all

For IBM Spectrum Scale V4.1.1.0 thru V4.1.1.18, apply V4.1.1.19 available from FixCentral at
https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%2Bdefined%2Bstorage&product=ibm/StorageSoftware/IBM+Spectrum+Scale&release=4.1.1&platform=All&function=all

If you cannot apply the latest level of service, contact IBM Service for an efix:

IBM Spectrum Scale 5.0.0.0, reference APAR IJ03838

IBM Spectrum Scale 4.2.0.0 through 4.2.3.6, reference APAR IJ03869

IBM Spectrum Scale V4.1.1.0 thru V4.1.1.18, reference APAR IJ03881

Workarounds and Mitigations

None