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

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

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 9.1.0.2| Install Rational ClearCase Fix Pack 2 (9.1.0.2) for 9.1
9.0.2 through 9.0.2.5| Install 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