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ibmIBM94B3EC63956148268E5D16E07FE76E71DA01EB7625BA7498384CCAD5794DE007
HistoryAug 09, 2018 - 4:37 p.m.

Security Bulletin: Vulnerabilities in OpenSSL affect IBM Rational ClearCase (CVE-2018-0739)

2018-08-0916:37:37
www.ibm.com
15

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

Summary

OpenSSL vulnerabilities were disclosed on March 27 2018 by the OpenSSL Project. OpenSSL is used by IBM Rational ClearCase. IBM Rational ClearCase has addressed the applicable CVE.

Vulnerability Details

CVEID: CVE-2018-0739 DESCRIPTION: OpenSSL is vulnerable to a denial of service. By sending specially crafted ASN.1 data with a recursive definition, a remote attacker could exploit this vulnerability to consume excessive stack memory.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/140847 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)

Affected Products and Versions

IBM Rational ClearCase versions:

Version

|

Status

—|—

9.0.1 through 9.0.1.3

|

Affected

9.0 through 9.0.0.6

|

Affected

8.0.1 through 8.0.1.17

|

Affected

8.0 through 8.0.0.21

|

Affected

Not all deployments of Rational ClearCase use OpenSSL in a way that is affected by these vulnerabilities.

You are vulnerable if your use of Rational ClearCase includes any of these configurations:

  1. You use the base ClearCase/ClearQuest integration client on any platform, configured to use SSL to communicate with a ClearQuest server.
  2. You use the UCM/ClearQuest integration on UNIX/Linux clients, configured to use SSL to communicate with a ClearQuest server.
    Note: Windows clients using the UCM/ClearQuest integration are not vulnerable.
  3. On UNIX/Linux clients, you use the Change Management Integration (CMI), when configured to use SSL to communicate with the server.
    Note: Windows clients using the CMI integration are not vulnerable.
  4. You use ratlperl, ccperl, or cqperl to run your own perl scripts, and those scripts use SSL connections.

Remediation/Fixes

Apply a fix pack as listed in the table below. The fix pack includes OpenSSL 1.0.2o.

Affected Versions

|

Applying the fix

—|—

9.0.1 through 9.0.1.3
9.0 through 9.0.0.6

| Install Rational ClearCase Fix Pack 4 (9.0.1.4) for 9.0.1

8.0.1 through 8.0.1.17
8.0 through 8.0.0.21

| Install Rational ClearCase Fix Pack 18 (8.0.1.18) for 8.0.1

For 7.0.x, 7.1.x, 8.0.x and earlier releases, IBM recommends upgrading to a fixed, supported version/release/platform of the product.

Workarounds and Mitigations

None.

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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