Security Bulletin: IBM Watson Assistant for IBM Cloud Pak for Data is vulnerable to multiple vulnerabilities in Perl

Summary

Potential vulnerabilities in Perl have been identified that may affect IBM Watson Assistant for IBM Cloud Pak for Data. These vulnerabilities have been addressed. Refer to details for additional information.

Vulnerability Details

CVEID:CVE-2020-12723
**DESCRIPTION:**Perl is vulnerable to a buffer overflow, caused by recursive S_study_chunk calls in regcomp.c. By using a specially-crafted regular expression, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/183205 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)

CVEID:CVE-2020-10543
**DESCRIPTION:**Perl is vulnerable to a heap-based buffer overflow, caused by an integer overflow in the nested regular expression quantifiers. By sending a specially-crafted request, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/183203 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)

CVEID:CVE-2020-10878
**DESCRIPTION:**Perl could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow related to the mishandling of a PL_regkind[OP(n)] == NOTHING situation. By using a specially-crafted regular expression, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/183204 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

For all affected versions, IBM strongly recommends addressing the vulnerability now by upgrading to the latest (v4.7.0 or later releases) release of IBM Watson Assistant for IBM Cloud Pak for Data which maintains backward compatibility with the versions listed above.

Follow instructions for Installing Watson Assistant in Link to Release (v4.7.0 release information)

<https://www.ibm.com/docs/en/cloud-paks/cp-data/4.7.x&gt;

Workarounds and Mitigations

None