SB2022060722 - Ubuntu update for ruby2.5

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Main Vulnerability Database SB2022060722

SB2022060722 - Ubuntu update for ruby2.5

Published: June 7, 2022 Updated: July 20, 2022

Security Bulletin ID SB2022060722
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Double Free (CVE-ID: CVE-2022-28738)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Regexp compilation process in Ruby. A remote attacker can pass specially crafted data to the application, trigger a double free error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


2) Type conversion (CVE-ID: CVE-2022-28739)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a type conversion error in some convertion methods like Kernel#Float</code> and <code>String#to_f. A remote attacker can pass specially crafted data to the affected application, trigger memory corruption and execute arbitrary code in the system.


Remediation

Install update from vendor's website.

References