SB2019052718 - Permissions, Privileges, and Access Controls in firefox-esr (Alpine package)
Published: May 27, 2019
Security Bulletin ID
SB2019052718
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2018-18511)
The vulnerability allows a remote attacker to bypass same-origin policy.
The vulnerability exists due to an error when processing canvas elements with transferFromImageBitmap method. A remote attacker can create a specially crafted website, trick the victim into visiting it, bypass cross-origin policy and view images loaded in other browser tabs.
Remediation
Install update from vendor's website.