David Keeler

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 57 Firefox ESR versions prior to 52.5 Thunderbird versions prior to 52.5 **Description** The issue is related to a buffer overflow in memory, which can be exploited by a remote attacker to execute arbitrary code. This is due to memory safety bugs that have been reported, some of which show evidence of memory corruption. It is presumed that with sufficient effort, these bugs could be exploited to run arbitrary code. **Recommendations** For Firefox versions prior to 57, update to version 57 or later. For Firefox ESR versions prior to 52.5, update to version 52.5 or later. For Thunderbird versions prior to 52.5, update to version 52.5 or later.

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 56 **Description** The issue is related to memory safety bugs, including evidence of memory corruption, which could potentially be exploited to run arbitrary code. This is due to a buffer overflow in memory, allowing a remote attacker to execute arbitrary code. **Recommendations** For versions prior to 56, update to version 56 or later to resolve the issue. As a temporary workaround, consider restricting access to sensitive resources until the update is applied.

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 52 Thunderbird versions prior to 52 **Description** Memory safety bugs were reported, showing evidence of memory corruption. It is presumed that with enough effort, some of these bugs could be exploited to run arbitrary code. **Recommendations** For Firefox versions prior to 52, update to version 52 or later. For Thunderbird versions prior to 52, update to version 52 or later.

**Name of the Vulnerable Software and Affected Versions** Mac OS X (affected versions not specified) **Description** The issue is caused by a buffer overflow in the ASN.1 decoder of the Mac OS X operating system. Exploitation of this issue may allow a remote attacker to execute arbitrary code or cause a denial of service (memory corruption) using a specially crafted certificate. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.