Gunes Acar

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 80 Firefox for Android versions prior to 80 **Description** The issue allows for information leakage via the MediaError message when attempting to load non-video content in an audio/video context, disclosing the exact status code. This inconsistency with standardized onerror/onsuccess disclosure can lead to attacks such as inferring login status to services or device discovery on a local network. **Recommendations** For Firefox versions prior to 80, update to version 80 or later to resolve the issue. For Firefox for Android versions prior to 80, update to version 80 or later to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** Google Chrome versions prior to 68.0.3440.75 **Description** The issue is related to an information leak in the media engine of Google Chrome, which can be exploited by a remote attacker using a crafted HTML page. This allows the attacker to obtain potentially sensitive information from process memory. The vulnerability is also related to the Blink web page display mechanism and involves bypassing the Cross-origin resource sharing (CORS) mechanism, potentially allowing unauthorized access to protected information. **Recommendations** For Google Chrome versions prior to 68.0.3440.75, update to version 68.0.3440.75 or later to resolve the issue. As a temporary workaround, consider avoiding the use of crafted HTML pages that could exploit the vulnerability in the media engine. Restrict access to sensitive information to minimize the risk of exploitation until the update is applied.