SB2020092315 - Use-after-free in firefox (Alpine package)
Published: September 23, 2020
Security Bulletin ID
SB2020092315
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2020-15678)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing HTML content. When recursing through graphical layers while scrolling, an iterator may
have become invalid, resulting in a potential use-after-free. This
occurs because the function APZCTreeManager::ComputeClippedCompositionBounds did not follow iterator invalidation rules.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install update from vendor's website.