Security Bulletin: Vulnerabilities in OpenSSL affect IBM Rational ClearQuest


## Summary OpenSSL vulnerabilities were disclosed by the OpenSSL Project. OpenSSL is used by IBM Rational ClearQuest. IBM Rational ClearQuest has addressed the applicable CVEs. ## Vulnerability Details **CVEID: **[CVE-2021-23839](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23839>) **DESCRIPTION: **OpenSSL could provide weaker than expected security, caused by incorrect SSLv2 rollback protection that allows for the inversion of the logic during a padding check. If the server is configured for SSLv2 support at compile time, configured for SSLv2 support at runtime or configured for SSLv2 ciphersuites, it will accept a connection if a version rollback attack has occurred and erroneously reject a connection if a normal SSLv2 connection attempt is made. CVSS Base score: 5.9 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/196849](<https://exchange.xforce.ibmcloud.com/vulnerabilities/196849>) for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N) **CVEID: **[CVE-2021-23840](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23840>) **DESCRIPTION: **OpenSSL is vulnerable to a denial of service, caused by an integer overflow in CipherUpdate. By sending an overly long argument, an attacker could exploit this vulnerability to cause the application to crash. CVSS Base score: 7.5 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/196848](<https://exchange.xforce.ibmcloud.com/vulnerabilities/196848>) for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) **CVEID: **[CVE-2021-23841](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23841>) **DESCRIPTION: **OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference in the X509_issuer_and_serial_hash() function. By parsing the issuer field, an attacker could exploit this vulnerability to cause the application to crash. CVSS Base score: 7.5 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/196847](<https://exchange.xforce.ibmcloud.com/vulnerabilities/196847>) for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) **CVEID: **[CVE-2020-1971](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1971>) **DESCRIPTION: **OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference. If the GENERAL_NAME_cmp function contain an EDIPARTYNAME, an attacker could exploit this vulnerability to cause the application to crash. CVSS Base score: 7.5 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/192748](<https://exchange.xforce.ibmcloud.com/vulnerabilities/192748>) for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) ## Affected Products and Versions Affected Product(s) | Version(s) ---|--- IBM Rational ClearQuest | 9.0 IBM Rational ClearQuest | 9.0.1 IBM Rational ClearQuest | 9.0.2 IBM Rational ClearQuest | 9.1 ## Remediation/Fixes Apply a fix pack as listed in the table below. The fix pack includes OpenSSL **1.1.1k.** **Affected Versions** | **Applying the fix** ---|--- 9.1 | Install [Rational ClearQuest Fix Pack 1 ( for 9.1](<https://www.ibm.com/support/pages/node/6457819> "Rational ClearQuest Fix Pack 2 \(\) for 9.0.2" ) 9.0.2 through | Install [Rational ClearQuest Fix Pack 4 ( for 9.0.2](<https://www.ibm.com/support/pages/node/6457817> "Rational ClearQuest Fix Pack 2 \(\) for 9.0.2" ) 9.0.1 through 9.0 through | Install [Rational ClearQuest Fix Pack 12 ( for 9.0.1](<https://www.ibm.com/support/pages/node/6457815> "Rational ClearQuest Fix Pack 10 \(\) for 9.0.1" ) _For 8.0.x, 8.0.1.x, and earlier releases, IBM recommends upgrading to a fixed, supported version/release/platform of the product._ ## 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 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 [OpenSSL Project vulnerability website](<http://www.openssl.org/news/vulnerabilities.html> "OpenSSL Project vulnerability website" ) ## 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>) ## Change History 29 June 2021: Initial Publication *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. ## Document Location Worldwide [{"Type":"MASTER","Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSSH5A","label":"Rational ClearQuest"},"ARM Category":[{"code":"a8m50000000L0iAAAS","label":"ClearQuest"}],"ARM Case Number":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"All Versions"}]

Affected Software

CPE Name Name Version
ibm rational clearquest 9.0
ibm rational clearquest 9.0.1
ibm rational clearquest 9.0.2
ibm rational clearquest 9.1