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ibmIBMD911317A5AB78973EC0BCDD274D56A8146D89345FD34F13DAEEC08B6503FEAE0
HistoryMay 01, 2020 - 8:19 a.m.

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

2020-05-0108:19:24
www.ibm.com
8

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

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&gt; 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&gt; 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&gt; 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&gt; 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&gt; 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&gt; 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:

  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 &lt;f:properties&gt; 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.

  1. 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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P