Security Bulletin: Multiple PostgreSQL Vulnerabilities Affect IBM Storage Scale System

Summary

There are vulnerabilities in PostgreSQL versions used by IBM Storage Scale System that could allow a remote authenticated attacker to obtain sensitive information or bypass security restrictions, a denial of service and a buffer overflow. IBM Storage Scale System has addressed the applicable CVEs. CVE-2023-5868, CVE-2020-21469, CVE-2023-5869, CVE-2024-0985, CVE-2023-5870.

Vulnerability Details

**CVEID:**CVE-2023-5868 DESCRIPTION: PostgreSQL could allow a remote authenticated attacker to obtain sensitive information, caused by a flaw when perform certain aggregate function calls. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain bytes of server memory from the end of the “unknown”-type value to the next zero byte, and use this information to launch further attacks against the affected system.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/271219 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)

**CVEID:**CVE-2020-21469 DESCRIPTION: PostgreSQL is vulnerable to a denial of service, caused by a buffer overflow. By sending specially crafted SIGHUP signals, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/266327 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-2023-5869 DESCRIPTION: PostgreSQL is vulnerable to a buffer overflow, caused by improper bounds checking by the SQL array values. By sending a specially crafted request, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base score: 8.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/271226 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

**CVEID:**CVE-2024-0985 DESCRIPTION: PostgreSQL could allow a remote authenticated attacker to bypass security restrictions, caused by a flaw when running in REFRESH MATERIALIZED VIEW CONCURRENTLY. By persuading a victim to run command a specially crafted view, an attacker could exploit this vulnerability to execute arbitrary SQL functions as the command issuer.
CVSS Base score: 8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/282771 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)

**CVEID:**CVE-2023-5870 DESCRIPTION: PostgreSQL is vulnerable to a denial of service, caused by a flaw in the pg_signal_backend role. By sending a specially crafted request, a remote authenticated attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 2.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/271227 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Remediation/Fixes

IBM recommends that you fix this vulnerability by upgrading affected versions of IBM Storage Scale System 3000, 3200, 3500, 5000 and 6000 to the following code levels or higher:

V6.2.0.0

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=Software defined storage&product=ibm/StorageSoftware/IBM+Storage+Scale+System&release=6.2.0&platform=All&function=all

V6.1.9.3

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=Software defined storage&product=ibm/StorageSoftware/IBM+Storage+Scale+System&release=6.1.9&platform=All&function=all

Workarounds and Mitigations

None