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Security Bulletin: Multiple Vulnerabilities in libpng and libxml affect Rational DOORS

Description

## Summary Multiple vulnerabilities in libpng and libxml affect Rational DOORS ## Vulnerability Details **CVE-ID**: [CVE-2015-1819](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1819>) **Description**: Libxml is vulnerable to a denial of service, caused by an XML External Entity Injection (XXE) error in the xmlreader when processing XML data. A remote attacker could exploit this vulnerability to consume all available memory resources. **CVSS Base Score**: 5.300 **CVSS Temporal Score (X-Force Link)**: <https://exchange.xforce.ibmcloud.com/vulnerabilities/107272> for the current score **CVSS Environmental Score***: Undefined **CVSS Vector**: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) **CVE-ID**: [CVE-2015-7941](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7941>) **Description**: Libxml2 could allow a remote attacker to execute arbitrary code on the system, caused by improper validation when processing XML files. By using a specially-crafted XML file, an attacker could exploit this vulnerability to cause an out of bounds read error allowing the attacker to execute arbitrary code on the system. **CVSS Base Score**: 9.800 **CVSS Temporal Score (X-Force Link)**: <https://exchange.xforce.ibmcloud.com/vulnerabilities/108071> 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:H/A:H) **CVE-ID**: [CVE-2015-7942](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7942>) **Description**: Libxml2 could allow a remote attacker to execute arbitrary code on the system, caused by improper validation when processing XML files. By using a specially-crafted XML file, an attacker could exploit this vulnerability to cause an out of bounds read error allowing the attacker to execute arbitrary code on the system. **CVSS Base Score**: 9.800 **CVSS Temporal Score (X-Force Link)**: <https://exchange.xforce.ibmcloud.com/vulnerabilities/108073> 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:H/A:H) **CVE-ID**: [CVE-2015-8035](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8035>) Description: libxml2 is vulnerable to a denial of service, caused by an error when xz support is enabled. By using a specially-crafted xml file, an local attacker could exploit this vulnerability to cause the software to crash. **CVSS Base Score**: 4.000 **CVSS Temporal Score (X-Force Link)**: <https://exchange.xforce.ibmcloud.com/vulnerabilities/107845> for the current score **CVSS Environmental Score***: Undefined **CVSS Vector**: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) **CVE-ID**: [CVE-2015-8241](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8241>) Description: libxml2 is vulnerable to a buffer overflow, caused by improper bounds checking by the XML parser in xmlNextChar. By using a malformed XML file, a local attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash. **CVSS Base Score**: 5.900 **CVSS Temporal Score (X-Force Link)**: <https://exchange.xforce.ibmcloud.com/vulnerabilities/108169> for the current score **CVSS Environmental Score***: Undefined **CVSS Vector**: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L) **CVE-ID**: [CVE-2015-8242](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8242>) **Description**: libxml2 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the HTML parser in push mode in xmlSAX2TextNode. By using a malformed XML file, a local attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash. **CVSS Base Score**: 5.900 **CVSS Temporal Score (X-Force Link)**: <https://exchange.xforce.ibmcloud.com/vulnerabilities/108170> for the current score **CVSS Environmental Score***: Undefined **CVSS Vector**: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L) ** CVE-ID**: [CVE-2015-5312](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5312>)** Description**: An unspecified error in Libxml2 related to an entity expansion flaw has an unknown impact and attack vector.** CVSS Base Score**: 5.300** CVSS Temporal Score (X-Force Link)**: [_https://exchange.xforce.ibmcloud.com/vulnerabilities/108319_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/108319>) for the current score **CVSS Environmental Score***: Undefined ** CVSS Vector**: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)** CVE-ID**: [CVE-2015-7497](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7497>)** Description**: Libxml2 is vulnerable to a denial of service, caused by a heap-based buffer overflow in the xmlDictComputeFastQKey() function. A remote attacker could exploit this vulnerability to cause a denial of service.** CVSS Base Score**: 5.300** CVSS Temporal Score (X-Force Link)**: [_https://exchange.xforce.ibmcloud.com/vulnerabilities/108320_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/108320>) for the current score **CVSS Environmental Score***: Undefined ** CVSS Vector**: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)** CVE-ID**: [CVE-2015-7498](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7498>)** Description**: An unspecified error in Libxml2 related to the processing of entities after encoding conversion failures have occured has an unknown impact and attack vector.** CVSS Base Score**: 5.300** CVSS Temporal Score (X-Force Link)**: [_https://exchange.xforce.ibmcloud.com/vulnerabilities/108321_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/108321>) for the current score **CVSS Environmental Score***: Undefined ** CVSS Vector**: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)** CVE-ID**: [CVE-2015-7499](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7499>)** Description**: An unspecified error in Libxml2 related to some parser errors has an unknown impact and attack vector.** CVSS Base Score**: 5.300** CVSS Temporal Score (X-Force Link)**: [_https://exchange.xforce.ibmcloud.com/vulnerabilities/108322_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/108322>) for the current score **CVSS Environmental Score***: Undefined ** CVSS Vector**: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)** CVE-ID**: [CVE-2015-7500](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7500>)** Description**: Libxml2 is vulnerable to a denial of service, caused by a memory access error when handling invalid entity boundaries. A remote attacker could exploit this vulnerability to cause a denial of service.** CVSS Base Score**: 5.300** CVSS Temporal Score (X-Force Link)**: [_https://exchange.xforce.ibmcloud.com/vulnerabilities/108323_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/108323>) for the current score **CVSS Environmental Score***: Undefined ** CVSS Vector**: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) **CVE-ID**: [CVE-2015-8317](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8317>)** Description**: libxml2 is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the xmlParseXMLDecl function. By using a malformed XML file, a local attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.** CVSS Base Score**: 5.900** CVSS Temporal Score (X-Force Link)**: [_https://exchange.xforce.ibmcloud.com/vulnerabilities/108316_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/108316>) for the current score **CVSS Environmental Score***: Undefined ** CVSS Vector**: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L) **CVE-ID**: [CVE-2015-8710](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8710>)** Description**: Libxml2 is vulnerable to a denial of service, caused by an out-of-bounds memory access when parsing an unclosed HTML comment. By using the ""<!--"" HTML comment without close, a remote attacker could exploit this vulnerability to trigger an out-of-bounds read and cause the system to crash.** CVSS Base Score**: 5.300** CVSS Temporal Score (X-Force Link)**: [_https://exchange.xforce.ibmcloud.com/vulnerabilities/110076_](<https://exchange.xforce.ibmcloud.com/vulnerabilities/110076>) for the current score **CVSS Environmental Score***: Undefined ** CVSS Vector**: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) **CVEID:** [_CVE-2016-2073_](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=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) ## Affected Products and Versions Rational DOORS: 9.6.0.0 - 9.6.0.3, 9.6.1.0 - 9.6.1.4 The following Rational DOORS components are affected: * Rational DOORS desktop client * Rational DOORS database server * Rational DOORS interoperation server ## Remediation/Fixes Upgrade to the fix pack that corresponds to the version of Rational DOORS that you are running, as shown in the following table. Upgrade the Rational DOORS client, the Rational DOORS database server, and the Rational DOORS interoperation server. You should verify applying this fix does not cause any compatibility issues. **Rational DOORS version**| **Upgrade to fix pack** ---|--- 9.6.0 9.6.0.1 - 9.6.0.4| [9.6.0.5](<http://www.ibm.com/support/docview.wss?uid=swg24041347>) 9.6.1 9.6.1.1 - 9.6.1.4| [9.6.1.5](<http://www.ibm.com/support/docview.wss?uid=swg24041346>) _For Rational DOORS version 9.2.x and earlier, IBM recommends upgrading to a fixed, supported version/release/platform of the product._ If you are using Rational DOORS Web Access, after you upgrade _but before you start the Rational DOORS Web Access server_, edit the core configuration file and set the required version of the interoperation server to the version of the fix pack upgrade, as described in this procedure. **Procedure:** 1. To edit the Rational DOORS Web Access core configuration file, open the `festival.xml` file, which is in the `server\festival\config` directory. 2. Add the following line in the `<f:properties>` section: `` ``<**f:property name="interop.version" value="9.n.n.n"** />` `` `Replace "`9.n.n.n`" with the version of the fix pack upgrade: 9.6.0.5 or 9.6.1.5. 3. Save and close the file. After this revision, only the specified version of the interoperation server can access the Rational DOORS database. ## Workarounds and Mitigations None ## Get Notified about Future Security Bulletins Subscribe to [My Notifications](< http://www-01.ibm.com/software/support/einfo.html>) to be notified of important product support alerts like this. ### References [Complete CVSS v2 Guide](<http://www.first.org/cvss/v2/guide> "Link resides outside of ibm.com" ) [On-line Calculator v2](<http://nvd.nist.gov/CVSS-v2-Calculator> "Link resides outside of ibm.com" ) [Complete CVSS v3 Guide](<http://www.first.org/cvss/user-guide> "Link resides outside of ibm.com" ) [On-line Calculator v3](<http://www.first.org/cvss/calculator/3.0> "Link resides outside of ibm.com" ) Off ## Related Information [IBM Secure Engineering Web Portal](<http://www.ibm.com/security/secure-engineering/bulletins.html>) [IBM Product Security Incident Response Blog](<http://www.ibm.com/blogs/psirt>) ## Acknowledgement None ## Change History * 11 February 2016: Original copy published *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. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions. [{"Product":{"code":"SSKR2T","label":"IBM Engineering Requirements Management DOORS"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Component":"Configuration","Platform":[{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"9.6;9.6.0.1;9.6.0.2;9.6.0.3;9.6.1;9.6.1.1;9.6.1.2;9.6.1.3;9.6.1.4","Edition":"","Line of Business":{"code":"LOB59","label":"Sustainability Software"}}]


Affected Software


CPE Name Name Version
ibm engineering requirements management doors 9.6
ibm engineering requirements management doors 9.6.0.1
ibm engineering requirements management doors 9.6.0.2
ibm engineering requirements management doors 9.6.0.3
ibm engineering requirements management doors 9.6.1
ibm engineering requirements management doors 9.6.1.1
ibm engineering requirements management doors 9.6.1.2
ibm engineering requirements management doors 9.6.1.3
ibm engineering requirements management doors 9.6.1.4

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