Security Bulletin
Summary
Multiple vulnerabilities in libpng and libxml affect Rational DOORS
Vulnerability Details
CVE-ID: 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
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
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
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
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
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
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 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
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 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
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 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
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 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
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 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
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 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
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 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
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 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 |
| 9.6.1 9.6.1.1 - 9.6.1.4 | 9.6.1.5 |
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:
- To edit the Rational DOORS Web Access core configuration file, open the festival.xml file, which is in the server\festival\config directory.
- Add the following line in the <f:properties> section:
Replace "9.n.n.n" with the version of the fix pack upgrade: 9.6.0.5 or 9.6.1.5.
- 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
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References
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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
01 May 2020
UID
swg21971834