Sethalves

**Name of the Vulnerable Software and Affected Versions** CHICKEN versions 4.8.0.7 and prior to 4.9.1 **Description** The issue is related to a buffer overflow in the `read-u8vector!` procedure within the srfi-4 unit. This can be exploited by remote attackers to cause a denial of service, resulting in memory corruption and application crash. It is also possible for attackers to execute arbitrary code via a `#f` value in the `NUM` argument. **Recommendations** For versions 4.8.0.7 and prior to 4.9.1, update to version 4.9.1 or later to resolve the issue. As a temporary workaround, consider restricting the use of the `read-u8vector!` procedure in the srfi-4 unit to minimize the risk of exploitation. Avoid using the `#f` value in the `NUM` argument until the issue is resolved.