F. Alonso

**Name of the Vulnerable Software and Affected Versions** Thunderbird versions prior to 60 Thunderbird versions prior to 52.9 Firefox ESR versions prior to 60.1 Firefox ESR versions prior to 52.9 Firefox versions prior to 61 **Description** An integer overflow can occur during graphics operations done by the Supplemental Streaming SIMD Extensions 3 (SSSE3) scaler, resulting in a potentially exploitable crash. The issue is caused by an integer overflow and may allow a remote attacker to impact the confidentiality, integrity, and availability of protected information. **Recommendations** For Thunderbird versions prior to 60, update to version 60 or later. For Thunderbird versions prior to 52.9, update to version 52.9 or later. For Firefox ESR versions prior to 60.1, update to version 60.1 or later. For Firefox ESR versions prior to 52.9, update to version 52.9 or later. For Firefox versions prior to 61, update to version 61 or later.

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 54 Firefox ESR versions prior to 52.2 Thunderbird versions prior to 52.2 **Description** The issue is related to a use-after-free vulnerability in the IndexedDB interface, which can cause a potentially exploitable crash when an object is destroyed in memory while a method on it is still being executed. This could allow a remote attacker to cause a denial of service. **Recommendations** For Firefox versions prior to 54, update to version 54 or later. For Firefox ESR versions prior to 52.2, update to version 52.2 or later. For Thunderbird versions prior to 52.2, update to version 52.2 or later.