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Security Bulletin: Multiple Security Vulnerabilities in IBM Tivoli Storage Manager FastBack (CVE-2015-8519, CVE-2015-8520, CVE-2015-8521, CVE-2015-8522, CVE-2015-8523)

Security Bulletin


Summary

IBM Tivoli Storage Manager FastBack is affected by multiple security vulnerabilities such as stack based buffer overflow and denial of service. These vulnerabilities may cause the server to crash.

Vulnerability Details

CVEID: CVE-2015-8519
DESCRIPTION:
IBM Tivoli Storage Manager FastBack Server is vulnerable to a buffer overflow, caused by improper bounds checking in server command processing. A remote attacker could overflow a buffer and execute arbitrary code on the system with system privileges or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108936 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2015-8520
DESCRIPTION:
IBM Tivoli Storage Manager FastBack Server is vulnerable to a buffer overflow, caused by improper bounds checking in server command processing. A remote attacker could overflow a buffer and execute arbitrary code on the system with system privileges or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108937 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2015-8521
DESCRIPTION:
IBM Tivoli Storage Manager FastBack Server is vulnerable to a buffer overflow, caused by improper bounds checking in server command processing. A remote attacker could overflow a buffer and execute arbitrary code on the system with system privileges or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108938 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2015-8522
DESCRIPTION:
IBM Tivoli Storage Manager FastBack Server is vulnerable to a buffer overflow, caused by improper bounds checking in server command processing. A remote attacker could overflow a buffer and execute arbitrary code on the system with system privileges or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108939 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID:
CVE-2015-8523
DESCRIPTION:
IBM Tivoli Storage Manager FastBack Server is vulnerable to a denial of service. An attacker can send specially-crafted packets to the target's TCP port which would result in a shutdown of the service.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108943 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

IBM Tivoli Storage Manager FastBack 6.1.0.0 through 6.1.12.1.
IBM Tivoli Storage Manager FastBack 5.5 all levels

Remediation/Fixes

FastBack Release First Fixing VRMF Level Platfom APAR Link to fix
6.1 6.1.12.2 Windows None http://www-933.ibm.com/support/fixcentral/swg/selectFix?product=ibm%2FTivoli%2FIBM+Tivoli+Storage+Manager+FastBack

For FastBack 5.5, IBM recommends upgrading to a fixed, supported version of FastBack (6.1.12.2).

Workarounds and Mitigations

None

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References

Related information

Acknowledgement

The vulnerabilities are reported to IBM by Wei Gao at IXIA.

Change History

01 March 2016: Original Version Published
02 March 2016: Separated CVEs in Vulnerability Details
14 April 2016: Added that all levels of 5.5 are affected and fixed primary reference (right-hand side of web page) to only list 5.5.

*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 information

More support for: Tivoli Storage Manager FastBack

Software version: 5.5, 6.1, 6.1.1, 6.1.2, 6.1.3, 6.1.4, 6.1.5, 6.1.6, 6.1.7, 6.1.8, 6.1.9, 6.1.10, 6.1.11, 6.1.12

Operating system(s): Windows

Software edition: All Editions

Reference #: 1975536

Modified date: 14 April 2016