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Security Bulletin: Vulnerability in OpenSSL affects IBM Rational ClearCase (CVE-2021-3711, CVE-2021-3712)

Security Bulletin


Summary

OpenSSL vulnerabilities were disclosed by the OpenSSL Project. OpenSSL is used by IBM Rational ClearCase. IBM Rational ClearCase has addressed the applicable CVEs.

Vulnerability Details

CVEID:   CVE-2021-3712
DESCRIPTION:   OpenSSL could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read when processing ASN.1 strings. By sending specially crafted data, an attacker could exploit this vulnerability to read contents of memory on the system or perform a denial of service attack.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/208073 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)

CVEID:   CVE-2021-3711
DESCRIPTION:   OpenSSL is vulnerable to a buffer overflow, caused by improper bounds checking by the EVP_PKEY_decrypt() function within implementation of the SM2 decryption. By sending specially crafted SM2 content, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/208072 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
IBM Rational ClearCase8.0.0
IBM Rational ClearCase9.0
IBM Rational ClearCase9.0.1
IBM Rational ClearCase9.1
IBM Rational ClearCase9.0.2
IBM Rational ClearCase8.0.1

 

Remediation/Fixes

Apply a fix pack as listed in the table below. The fix pack includes OpenSSL 1.1.1l.

Affected Versions
Applying the fix
9.1 through 9.1.0.2Install Rational ClearCase Fix Pack 2 (9.1.0.2) for 9.1
9.0.2 through 9.0.2.5Install Rational ClearCase Fix Pack 5 (9.0.2.5) for 9.0.2
9.0.1 through 9.0.1.13
9.0 through 9.0.0.6
Install Rational ClearCase Fix Pack 13 (9.0.1.13) for 9.0.1

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

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

OpenSSL Project vulnerability website

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

Change History

22 Dec 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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Document Information

Modified date:
22 December 2021

UID

ibm16525218

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