Menglong2234

**Name of the Vulnerable Software and Affected Versions** Net-SNMP versions 5.8 through 5.9.3 **Description** The issue is related to a NULL Pointer Exception bug in the `handle ipDefaultTTL()` function. This bug can be exploited by a remote attacker with write access to cause the instance to crash via a specially crafted UDP packet, resulting in a Denial of Service. **Recommendations** For Net-SNMP versions 5.8 through 5.9.3, consider disabling the `handle ipDefaultTTL()` function as a temporary workaround until a patch is available. Restrict access to the UDP protocol to minimize the risk of exploitation. Avoid using the `handle ipDefaultTTL()` function in the affected API endpoint until the issue is resolved.

**Name of the Vulnerable Software and Affected Versions** Net-SNMP versions 5.4.3 through 5.9.3 **Description** The issue is related to a NULL Pointer Exception bug in the `handle ipv6IpForwarding()` function. This bug can be exploited by a remote attacker using a specially crafted UDP packet, resulting in a Denial of Service. The exploitation allows the attacker to cause the instance to crash. **Recommendations** For Net-SNMP versions 5.4.3 through 5.9.3, consider disabling the `handle ipv6IpForwarding()` function as a temporary workaround until a patch is available. Restrict access to the `agent/mibgroup/ip-mib/ip scalars.c` module to minimize the risk of exploitation. Avoid using the vulnerable function in the affected Net-SNMP versions until the issue is resolved.