SB2021012830 - Buffer overflow in firefox-esr (Alpine package)

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Main Vulnerability Database SB2021012830

SB2021012830 - Buffer overflow in firefox-esr (Alpine package)

Published: January 28, 2021

Security Bulletin ID SB2021012830
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Buffer overflow (CVE-ID: CVE-2021-23960)

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

The vulnerability exists due to insufficient validation of user-supplied input when performing garbage collection on re-declared JavaScript variables. A remote attacker can create a specially crafted web page, trick the victim into opening it and execute arbitrary code on the system.

Remediation

Install update from vendor's website.

References