Denial of Service Vulnerability in BACnet Protocol Stack through 0.8.6

Denial of Service Vulnerability in BACnet Protocol Stack through 0.8.6

CVE-2019-12480 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

BACnet Protocol Stack through 0.8.6 has a segmentation fault leading to denial of service in BACnet APDU Layer because a malformed DCC in AtomicWriteFile, AtomicReadFile and DeviceCommunicationControl services. An unauthenticated remote attacker could cause a denial of service (bacserv daemon crash) because there is an invalid read in bacdcode.c during parsing of alarm tag numbers.

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