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Category:   Application (Generic)  >   IBM Cognos Vendors:   IBM
(IBM Issues Fix for IBM Cognos Business Intelligence Server) Libxml2 Multiple Flaws Let Remote Users Deny Service and Cause Other Unspecified Impacts
SecurityTracker Alert ID:  1035870
SecurityTracker URL:  http://securitytracker.com/id/1035870
CVE Reference:   CVE-2015-1819, CVE-2015-5312, CVE-2015-7497, CVE-2015-7498, CVE-2015-7499, CVE-2015-7500, CVE-2015-7941, CVE-2015-7942, CVE-2015-8035, CVE-2015-8241, CVE-2015-8242, CVE-2015-8317   (Links to External Site)
Date:  May 12 2016
Impact:   Denial of service via network, Not specified
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 8.4.1, 10.1, 10.1.1, 10.2, 10.2.1, 10.2.2
Description:   Multiple vulnerabilities were reported in Libxml2. A remote user can cause denial of service conditions on the target system. The impact of some vulnerabilities was not specified. IBM Cognos Business Intelligence Server is affected.

A remote user can supply specially crafted XML data to trigger an XML entity expansion flaw in the xmlreader and consume excessive memory on the target system [CVE-2015-1819].

A buffer overread may occur in the HTML parse in the XML parser [CVE-2015-8241].

A buffer overread may occur in the HTML parse in push mode [CVE-2015-8242].

A memory access error may occur in handling incorrect entity boundaries [CVE-2015-7500].

Some parser errors may occur [CVE-2015-7499].

An entity expansion flaw may occur [CVE-2015-5312].

A heap overflow may occur in xmlDictComputeFastQKey() [CVE-2015-7497].

Processing of entities may occur after encoding conversion failures have occured [CVE-2015-7498]

An error may occur in XZ compression support [CVE-2015-8035].

Errors may occur in the cleanup of condition error handling and on parsing entity boundary errors [CVE-2015-7941].

A previous patch to correct an error in Conditional sections contained an overflow error [CVE-2015-7942].

An out-of-bounds heap read access error may occur [CVE-2015-8317].

Daniel Veillard, David Drysdale, and Hugh Davenport reported these vulnerabilities.

Impact:   A remote user can cause denial of service conditions.

The impact of some vulnerabilities was not specified.

Solution:   IBM has issued a fix for IBM Cognos Business Intelligence Server.

The IBM advisory is available at:

http://www-01.ibm.com/support/docview.wss?uid=swg21979767

Vendor URL:  www-01.ibm.com/support/docview.wss?uid=swg21979767 (Links to External Site)
Cause:   Access control error, Boundary error, Not specified
Underlying OS:  Linux (Any), UNIX (AIX), UNIX (HP/UX), UNIX (Solaris - SunOS), Windows (Any)

Message History:   This archive entry is a follow-up to the message listed below.
Nov 25 2015 Libxml2 Multiple Flaws Let Remote Users Deny Service and Cause Other Unspecified Impacts



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