SB2021120802 - Multiple vulnerabilities in Hitachi Energy RTU500 series CMU

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Main Vulnerability Database SB2021120802

SB2021120802 - Multiple vulnerabilities in Hitachi Energy RTU500 series CMU

Published: December 8, 2021

Security Bulletin ID SB2021120802
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Type Confusion (CVE-ID: CVE-2020-36229)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a type confusion error in ldap_X509dn2bv when parsing X.509 DN in ad_keystring. A remote attacker can send a specially crafted request to slapd and crash it.


2) Reachable Assertion (CVE-ID: CVE-2020-36230)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion when parsing the X.509 DN within the ber_next_element() function in decode.c. A remote attacker can send a specially crafted request to slapd and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References