Security Bulletin: IBM Cloud Pak for Data is vulnerable to buffer overflow due to perl (CVE-2020-12723, CVE-2020-10543, CVE-2020-10878)

Summary

Perl is used by IBM Cloud Pak for Data to build various binaries. (CVE-2020-12723, CVE-2020-10543, CVE-2020-10878)

Vulnerability Details

CVEID:CVE-2020-12723
**DESCRIPTION:**Perl is vulnerable to a denial of service, caused by a buffer overflow in regcomp.c. By using a specially crafted regular expression, a remote attacker could overflow a buffer and cause a denial of service.
CVSS Base score: 7.5
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:N/I:N/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: 8.2
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:N/I:L/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: 8.6
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:L/I:L/A:H)

Affected Products and Versions

Affected Product(s)|**Version(s)
**
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IBM Cloud Pak for Data| 4.0.0-4.8.4

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now.

Product(s)

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Version(s) number and/or range

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Remediation/Fix/Instructions

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IBM Cloud Pak for Data

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4.0.0-4.8.4

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Download 4.8.5 and follow instructions

Workarounds and Mitigations

None