Security Bulletin: Multiple Vulnerabilities in WebSphere Application Server Liberty affect IBM Virtualization Engine TS7700 (CVE-2021-35517, CVE-2021-36090)

Summary

IBM Virtualization Engine TS7700 is vulnerable to two potential denial of service conditions due to WebSphere Application Server Liberty. IBM Virtualization Engine TS7700 has addressed the applicable CVEs.

Vulnerability Details

CVEID:CVE-2021-35517
**DESCRIPTION:**Apache Commons Compress is vulnerable to a denial of service, caused by an out of memory error when allocating large amounts of memory. By persuading a victim to open a specially-crafted TAR archive, a remote attacker could exploit this vulnerability to cause a denial of service condition against services that use Compress’ tar package.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/205307 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

CVEID:CVE-2021-36090
**DESCRIPTION:**Apache Commons Compress is vulnerable to a denial of service, caused by an out-of-memory error when large amounts of memory are allocated. By reading a specially-crafted ZIP archive, a remote attacker could exploit this vulnerability to cause a denial of service condition against services that use Compress’ zip package.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/205310 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

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

Later microcode versions are not affected by the vulnerabilities reported in this Security Bulletin.

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 the appropriate code-specific VTD_EXEC (384 or 900 or 901) as needed. Affected microcode versions are shown below:

The minimum VTD_EXEC versions are 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.