SB2022110951 - Multiple vulnerabilities in Pale Moon



SB2022110951 - Multiple vulnerabilities in Pale Moon

Published: November 9, 2022

Security Bulletin ID SB2022110951
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

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

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Path traversal (CVE-ID: CVE-2022-31739)

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when saving downloaded files on Windows. A remote attacker can use the "%" character in filename to store data outside the intended directory using Windows environment variables, such as %HOMEPATH% or %APPDATA%.

The vulnerability affects Windows installations only.


2) Use of Uninitialized Variable (CVE-ID: CVE-2022-31741)

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

The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted webpage, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

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


Remediation

Install update from vendor's website.