SB2021040901 - Multiple vulnerabilities in Tenable Nessus Agent

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Main Vulnerability Database SB2021040901

SB2021040901 - Multiple vulnerabilities in Tenable Nessus Agent

Published: April 9, 2021 Updated: June 20, 2021

Security Bulletin ID SB2021040901
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Division by zero (CVE-ID: CVE-2019-16168)

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

The vulnerability exists due to a division by zero error within the whereLoopAddBtreeIndex in sqlite3.c due to improper input validation in the sqlite_stat1 sz field. A remote attacker can pass specially crafted data to the application, trigger division by zero error and crash the vulnerable application.


2) Security features bypass (CVE-ID: CVE-2021-3450)

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to an error in implementation of the X509_V_FLAG_X509_STRICT flag allows an attacker to overwrite a valid CA certificate using any non-CA certificate in the chain. As a result, a remote attacker can perform MitM attack.


Remediation

Install update from vendor's website.

References