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Security Bulletin: IBM Notes (CVE-2014-9495 and CVE-2015-0973)

Security Bulletin


Summary

libpng is vulnerable to a heap-based buffer overflow, caused by improper bounds checking when decompressing the IDAT_data. A local attacker could overflow a buffer and execute arbitrary code on the system or cause a denial of service. A remote attacker could exploit this vulnerability using IDAT data with a large width to overflow a buffer and execute arbitrary code on the system or cause a denial of service.

Vulnerability Details


CVEID:CVE-2014-9495

    DESCRIPTION:
    libpng is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the png_combine_row function when decompressing the IDAT_data. A remote attacker could exploit this vulnerability using a "very wide interlaced" PNG image to overflow a buffer and execute arbitrary code on the system or cause a denial of service.

    CVSS Base Score:9.30
    CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/99699 for the current score
    CVSS Environmental Score*: Undefined
    CVSS Vector: (AV:N/AC:M/Au:N/C:C/I:C/A:C)


CVEID: CVE-2015-0973

    DESCRIPTION:
    Libpng is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the png_read_IDAT_data() function. A remote attacker could exploit this vulnerability using IDAT data with a large width to overflow a buffer and execute arbitrary code on the system or cause a denial of service.

    CVSS Base Score: 7.5
    CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/100239 for the current score
    CVSS Environmental Score*: Undefined
    CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P)

Affected Products and Versions

Notes 9.0.1 Fix Pack 3 (plus Interim Fix 1) and earlier
Notes 8.5.3 Fix Pack versions 4, 5, and 6 (plus Interim Fixes)

Remediation/Fixes

CVE-2014-9495 and CVE-2015-0973 are also tracked as SPR PSIH9SSAHC. IBM has released Interim Fixes for Notes 9.0.1 Fix Pack 3 and 8.5.3 Fix Pack 6 to protect against these vulnerabilities. Follow the links below to download the latest Interim Fixes:

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References

Complete CVSS v2 Guide
On-line Calculator v2

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: 8.5.3.6, 9.0.1.3

Operating system(s): Windows

Reference #: 1698994

Modified date: 12 March 2015


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