CVE-2019-12480

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.

Score

CVSS 3.0 7.5 High

Status

Modified - cve@mitre.org

Published

2019-05-30

Last modified

2024-08-04

Weaknesses

CWE-125

Affected products

• Bacnet Protocol Stack (Bacnet Protocol Stack Project)

References

• http://packetstormsecurity.com/files/153716/BACnet-Stack-0.8.6-Denial-Of-Service.html
• https://1modm.github.io/CVE-2019-12480.html
• https://sourceforge.net/p/bacnet/bugs/62/
• https://sourceforge.net/p/bacnet/code/3220
• https://sourceforge.net/p/bacnet/code/3223
• https://sourceforge.net/p/bacnet/code/3224
• https://sourceforge.net/p/bacnet/code/3225