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Security Bulletin: IBM Notes is affected by Open Source zlib vulnerabilities

Security Bulletin


Summary

Open Source zlib library is vulnerable to multiple denial of service vulnerabilities. IBM Notes uses Open Source zlib library. IBM Notes has addressed these vulnerabilities.

Vulnerability Details


CVEID: CVE-2016-9840
DESCRIPTION:
 zlib is vulnerable to a denial of service, caused by an out-of-bounds pointer arithmetic in inftrees.c. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120508 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2016-9841
DESCRIPTION:
 zlib is vulnerable to a denial of service, caused by an out-of-bounds pointer arithmetic in inftrees.c. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120509 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2016-9842
DESCRIPTION:
 zlib is vulnerable to a denial of service, caused by an undefined left shift of negative number. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120510 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2016-9843
DESCRIPTION:
 zlib is vulnerable to a denial of service, caused by a big-endian out-of-bounds pointer. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120511 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

Affected Products and Versions


IBM Notes 9.0.1 to 9.0.1 FP8IF1.
IBM Notes 9.0 to 9.0 IF4.
IBM Notes 8.5.3 to 8.5.3 FP6 IF13
IBM Notes 8.5.2 to 8.5.2 FP4 IF3
IBM Notes 8.5.1 to 8.5.1 FP5 IF3
IBM Notes 8.5 release

Remediation/Fixes

Product Version Link
IBM Notes 9.0.1 FP9 https://www.ibm.com/support/docview.wss?uid=swg24037141
IBM Notes 8.5.3 FP6 IF15 http://www.ibm.com/support/docview.wss?uid=swg21663874
IBM Notes 64-bit Mac 901 64-bit Mac IF11 http://www.ibm.com/support/docview.wss?uid=swg21657963

Customers who remain on the following releases may open a Service Request with IBM Support and reference SPR# PPUEAHRDF7.

IBM Notes 9.0.1 to 9.0.1 FP8 IF1.
IBM Notes 9.0 to 9.0 IF4.
IBM Notes 8.5.2 to 8.5.2 FP4 IF3
IBM Notes 8.5.1 to 8.5.1 FP5 IF3
IBM Notes 8.5 release

Get Notified about Future Security Bulletins

References

Complete CVSS v3 Guide
On-line Calculator v3

Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

31 August 2017: Original 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 information

More support for: IBM Notes
Security

Software version: 8.5.1.5, 8.5.2.4, 8.5.3.6, 9.0, 9.0.1.8

Operating system(s): OS X, Windows

Reference #: 1997877

Modified date: 31 August 2017


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