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Security Bulletin: libpng related security vulnerabilities identified in IBM Notes (CVE-2015-7981, CVE-2015-8126, CVE-2015-8540, CVE-2015-8472)

Security Bulletin


Summary

This security bulletin details libpng related security vulnerabilities and fixes available in IBM Notes.

Vulnerability Details


CVEID: CVE-2015-7981
DESCRIPTION: libpng could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read in the png_convert_to_rfc1123 function. An attacker could exploit this vulnerability to obtain sensitive information.


CVEID: CVE-2015-8126
DESCRIPTION: libpng is vulnerable to a buffer overflow, caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions. By persuading a victim to open a specially-crafted PNG file, a remote attacker could overflow a buffer and execute arbitrary code on the system.

CVEID: CVE-2015-8540
DESCRIPTION: libpng is vulnerable to a buffer overflow, caused by a read underflow in png_check_keyword in pngwutil.c. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.

CVEID: CVE- 2015-8472
DESCRIPTION: libpng is vulnerable to a buffer overflow, caused by improper bounds checking by the png_get_PLTE() and png_set_PLTE() functions. By persuading a victim to open a specially crafted PNG image, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.

Affected Products and Versions

IBM Notes 9.0.1
IBM Notes 9.0
IBM Notes 8.5.3
IBM Notes 8.5.2
IBM Notes 8.5.1

Remediation/Fixes

CVE-2015-7981, CVE-2015-8126, CVE-2015-8540, CVE-2015-8472 are also tracked as SPR AYAVA67A8Z

Product VRMF Remediation Fix
IBM Notes 9.0.1 Fix Pack 5 Interim Fix 2 (Windows) http://www-01.ibm.com/support/docview.wss?uid=swg21657963#Notes_tab
IBM Notes 64-bit 9.0.1 Interim Fix 1 (Mac) http://www-01.ibm.com/support/docview.wss?uid=swg21657963#Notes64_tab
IBM Notes 8.5.3 Fix Pack 6 Interim Fix 9 (Windows / Mac) http://www-01.ibm.com/support/docview.wss?uid=swg21663874


Customers using following releases may open a PMR via the IBM Support Portal and reference SPR AYAVA67A8Z for custom fixes

IBM Notes 9.0.1 (Linux Platform)
IBM Notes 9.0
IBM Notes 8.5.3 (Linux Platform)
IBM Notes 8.5.2
IBM Notes 8.5.1

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

*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, 9.0.1.5

Operating system(s): Linux, OS X, Windows

Reference #: 1975365

Modified date: 29 February 2016


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