Security Bulletin: Due to use of OpenSSL, IBM Virtualization Engine TS7700 is vulnerable to denial of service (CVE-2022-0778) and privilege escalation (CVE-2022-1292)

Summary

IBM Virtualization Engine TS7700 is vulnerable to denial of service (CVE-2022-0778) and privilege escalation (CVE-2022-1292) due to the use of OpenSSL. OpenSSL is used by IBM Virtualization Engine TS7700 for inbound and outbound TLS connections other than those provided by the Management Interface. IBM Virtualization Engine TS7700 has addressed the applicable CVEs.

Vulnerability Details

CVEID:CVE-2022-0778
**DESCRIPTION:**OpenSSL is vulnerable to a denial of service, caused by a flaw in the BN_mod_sqrt() function when parsing certificates. By using a specially-crafted certificate with invalid explicit curve parameters, a remote attacker could exploit this vulnerability to cause an infinite loop, and results in a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/221911 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-2022-1292
**DESCRIPTION:**OpenSSL could allow a remote authenticated attacker to execute arbitrary commands on the system, caused by improper validation of user-supplied input by the c_rehash script. By sending a specially-crafted request using shell metacharacters, an attacker could exploit this vulnerability to execute arbitrary commands with the privileges of the script on the system.
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/225619 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

All versions of microcode for the IBM Virtualization Engine TS7700 (3957-VEC and 3957-VED) prior to and including the following are affected:

Remediation/Fixes

Visit <https://tape.ibmrcl.enterpriseappointments.com/v2/&gt; or contact IBM Service at 1-800-IBM-SERV to arrange an upgrade to the latest microcode version followed by the installation of VTD_EXEC.279 as needed. Minimum microcode versions are shown below:

The minimum VTD_EXEC version is shown below:

Workarounds and Mitigations

Although IBM recommends that you upgrade to the fixes identified above, you can mitigate, but not eliminate the risk of these vulnerabilities by restricting physical and network access to the TS7700 to authorized users and IBM Service Personnel only.