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Security Bulletin: IBM Cognos AnalyticsのLibxml2脆弱性について

Description

## Summary IBM Cognos Analytics 11.0.5.0で修正されている複数の脆弱性についてお知らせ致します。 IBM® WebSphere Application Server Libertyには複数のLibxml2 脆弱性が存在します。LibertyはCognos Analytics で使用されています。これらの問題はIBM WebSphere Application Server Libertyの更新の一部として公開されました。 2つのクロスサイトスクリプティングに関する脆弱性も修正されています。 脆弱性の詳細につきましては、下記サイトをご覧ください。 ## Vulnerability Details **CVEID:** [_CVE-2016-4483_](<https://vulners.com/cve/CVE-2016-4483>)** DESCRIPTION:** libxml2 is vulnerable to a denial of service, caused by an out-of-bounds read when parsing a specially crafted XML file if recover mode is used. By persuading a victim to open a specially crafted XML file, a remote attacker could exploit this vulnerability to cause the application to crash. CVSS Base Score: 4.3 CVSS Temporal Score: See [_https://exchange.xforce.ibmcloud.com/vulnerabilities/114279_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/114279>) for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L) ** CVEID:** [_CVE-2016-2073_](<https://vulners.com/cve/CVE-2016-2073>)** DESCRIPTION:** libxml2 is vulnerable to a heap-based buffer overflow, caused by an out-of-bounds read in the htmlParseNameComplex() function. By persuading a victim to open a specially crafted XML file, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash. CVSS Base Score: 6.3 CVSS Temporal Score: See [_https://exchange.xforce.ibmcloud.com/vulnerabilities/110307_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/110307>) for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L) ** CVEID:** [_CVE-2016-3705_](<https://vulners.com/cve/CVE-2016-3705>)** DESCRIPTION:** libxml2 is vulnerable to a stack-based buffer overflow, caused by an out-of-bounds read of xmlParserEntityCheck() and xmlParseAttValueComplex() functions in parser.c. By persuading a victim to open a specially crafted XML file, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash. CVSS Base Score: 6.3 CVSS Temporal Score: See [_https://exchange.xforce.ibmcloud.com/vulnerabilities/112885_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/112885>) for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L) **CVEID:** [_CVE-2016-4447_](<https://vulners.com/cve/CVE-2016-4447>)** DESCRIPTION:** libxml2 is vulnerable to a denial of service, caused by a heap-based buffer overflow. By persuading a victim to open a specially crafted XML file, a remote attacker could overflow a buffer and cause the application to crash. CVSS Base Score: 4.3 CVSS Temporal Score: See [_https://exchange.xforce.ibmcloud.com/vulnerabilities/113522_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/113522>) for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L) ** CVEID:** [_CVE-2016-4448_](<https://vulners.com/cve/CVE-2016-4448>)** DESCRIPTION:** libxml2 could allow a remote attacker to execute arbitrary code on the system, caused by a format string error. By using a specially crafted html file containing malicious format specifiers, a remote attacker could exploit this vulnerability to execute arbitrary code on the system or cause the application to crash. CVSS Base Score: 7.3 CVSS Temporal Score: See [_https://exchange.xforce.ibmcloud.com/vulnerabilities/113523_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/113523>) 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-2016-4449_](<https://vulners.com/cve/CVE-2016-4449>)** DESCRIPTION:** libxml2 could allow a remote attacker to obtain sensitive information, caused by a XML external entity (XXE) error when processing XML data by the XML parser. A remote attacker could exploit this vulnerability to obtain sensitive information. CVSS Base Score: 7.5 CVSS Temporal Score: See [_https://exchange.xforce.ibmcloud.com/vulnerabilities/113524_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/113524>) for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) ** CVEID:** [_CVE-2015-8806_](<https://vulners.com/cve/CVE-2015-8806>)** DESCRIPTION:** Libxml2 is vulnerable to a denial of service, caused by a heap-buffer overread in dict.c. By persuading a victim to open a specially crafted file, a remote attacker could exploit this vulnerability to cause the application to crash. CVSS Base Score: 4.3 CVSS Temporal Score: See [_https://exchange.xforce.ibmcloud.com/vulnerabilities/110613_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/110613>) for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L) ** CVEID:** [_CVE-2016-5986_](<https://vulners.com/cve/CVE-2016-5986>)** DESCRIPTION:** IBM WebSphere Application Server and IBM WebSphere Application Server Liberty could allow a remote attacker to obtain sensitive information, caused by the improper handling of responses under certain conditions. An attacker could exploit this vulnerability to gain server identification information. CVSS Base Score: 3.7 CVSS Temporal Score: See [_https://exchange.xforce.ibmcloud.com/vulnerabilities/116556_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/116556>) for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N) ** CVEID:** [_CVE-2016-0359_](<https://vulners.com/cve/CVE-2016-0359>)** DESCRIPTION:** IBM WebSphere Application Server is vulnerable to HTTP response splitting attacks. A remote attacker could exploit this vulnerability using specially-crafted URL to cause the server to return a split response, once the URL is clicked. This would allow the attacker to perform further attacks, such as Web cache poisoning, cross-site scripting, and possibly obtain sensitive information. CVSS Base Score: 6.1 CVSS Temporal Score: See [_https://exchange.xforce.ibmcloud.com/vulnerabilities/111929_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/111929>) for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) ** CVEID:** [_CVE-2016-0218_](<https://vulners.com/cve/CVE-2016-0218>)** DESCRIPTION:** IBM Cognos TM1 is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability using a specially-crafted URL to execute script in a victim's Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials. CVSS Base Score: 5.4 CVSS Temporal Score: See [_https://exchange.xforce.ibmcloud.com/vulnerabilities/109692_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/109692>) for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) ** CVEID:** [_CVE-2016-0217_](<https://vulners.com/cve/CVE-2016-0217>)** DESCRIPTION:** IBM Cognos Business Intelligence and IBM Cognos Analytics are vulnerable to stored cross-site scripting, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability to inject malicious script into a Web page which would be executed in a victim's Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials. CVSS Base Score: 5.4 CVSS Temporal Score: See [_https://exchange.xforce.ibmcloud.com/vulnerabilities/109691_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/109691>) for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) ## Affected Products and Versions IBM Cognos Analytics Version 11.0.0.0 から 11.0.4.0 ## Remediation/Fixes できるだけ早く11.0.5を適用してください。 [**_http://www.ibm.com/support/docview.wss?uid=swg24043090_**](<http://www.ibm.com/support/docview.wss?uid=swg24043090>) ##


Affected Software


CPE Name Name Version
ibm cognos analytics 11.0

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